diff --git a/Sources/GRPCCodeGen/CodeGenerationRequest.swift b/Sources/GRPCCodeGen/CodeGenerationRequest.swift
index 55cdb679a..ae12f7975 100644
--- a/Sources/GRPCCodeGen/CodeGenerationRequest.swift
+++ b/Sources/GRPCCodeGen/CodeGenerationRequest.swift
@@ -442,7 +442,7 @@ public struct MethodName: Hashable {
 
   /// The name as used as a property.
   ///
-  /// This value typically starts with an lowercase character, for example "get".
+  /// This value typically starts with a lowercase character, for example "get".
   public var functionName: String
 
   public init(identifyingName: String, typeName: String, functionName: String) {
diff --git a/Sources/GRPCCodeGen/Internal/Renderer/TextBasedRenderer.swift b/Sources/GRPCCodeGen/Internal/Renderer/TextBasedRenderer.swift
index 3cfb4a2dd..cd7c34728 100644
--- a/Sources/GRPCCodeGen/Internal/Renderer/TextBasedRenderer.swift
+++ b/Sources/GRPCCodeGen/Internal/Renderer/TextBasedRenderer.swift
@@ -43,7 +43,7 @@ final class StringCodeWriter {
   internal let indentation: Int
 
   /// Whether the next call to `writeLine` will continue writing to the last
-  /// stored line. Otherwise a new line is appended.
+  /// stored line. Otherwise, a new line is appended.
   private var nextWriteAppendsToLastLine: Bool = false
 
   /// Creates a new empty writer.
diff --git a/Sources/GRPCCodeGen/Internal/Translator/ServerCodeTranslator.swift b/Sources/GRPCCodeGen/Internal/Translator/ServerCodeTranslator.swift
index 3de95fdc1..34b913e9d 100644
--- a/Sources/GRPCCodeGen/Internal/Translator/ServerCodeTranslator.swift
+++ b/Sources/GRPCCodeGen/Internal/Translator/ServerCodeTranslator.swift
@@ -206,7 +206,7 @@ struct ServerCodeTranslator {
       /// This protocol is higher level than ``StreamingServiceProtocol`` but lower level than
       /// the ``SimpleServiceProtocol``, it provides access to request and response metadata and
       /// trailing response metadata. If you don't need these then consider using
-      /// the ``SimpleServiceProtocol``. If you need fine grained control over your RPCs then
+      /// the ``SimpleServiceProtocol``. If you need fine-grained control over your RPCs then
       /// use ``StreamingServiceProtocol``.
       """
   }
diff --git a/Sources/GRPCCore/Call/Client/CallOptions.swift b/Sources/GRPCCore/Call/Client/CallOptions.swift
index 68a36a9e6..9cfcb6220 100644
--- a/Sources/GRPCCore/Call/Client/CallOptions.swift
+++ b/Sources/GRPCCore/Call/Client/CallOptions.swift
@@ -40,7 +40,7 @@ public struct CallOptions: Sendable {
   /// Whether RPCs for this method should wait until the connection is ready.
   ///
   /// If `false` the RPC will abort immediately if there is a transient failure connecting to
-  /// the server. Otherwise gRPC will attempt to connect until the deadline is exceeded.
+  /// the server. Otherwise, gRPC will attempt to connect until the deadline is exceeded.
   public var waitForReady: Bool?
 
   /// The maximum allowed payload size in bytes for an individual request message.
diff --git a/Sources/GRPCCore/Call/Client/ClientResponse.swift b/Sources/GRPCCore/Call/Client/ClientResponse.swift
index 23ec38546..fc6ad3386 100644
--- a/Sources/GRPCCore/Call/Client/ClientResponse.swift
+++ b/Sources/GRPCCore/Call/Client/ClientResponse.swift
@@ -140,7 +140,7 @@ public struct ClientResponse<Message: Sendable>: Sendable {
 ///
 /// A stream response captures every part of the response stream over time and distinguishes
 /// accepted and rejected requests via the ``accepted`` property. An "accepted" request is one
-/// where the the server responds with initial metadata and attempts to process the request. A
+/// where the server responds with initial metadata and attempts to process the request. A
 /// "rejected" request is one where the server responds with a status as the first and only
 /// response part and doesn't process the request body.
 ///
diff --git a/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor+RetryExecutor.swift b/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor+RetryExecutor.swift
index bb4eb4bc7..19c35b3f3 100644
--- a/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor+RetryExecutor.swift
+++ b/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor+RetryExecutor.swift
@@ -288,7 +288,7 @@ extension ClientRPCExecutor.RetryExecutor {
         // subscriber and maximises the chances that 'isKnownSafeForNextSubscriber' will
         // return true.
         //
-        // Note: this must only be called if we should retry, otherwise we may cancel a
+        // Note: this must only be called if we should retry; otherwise, we may cancel a
         // subscriber for an accepted request.
         retryStream.invalidateAllSubscriptions()
 
diff --git a/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor.swift b/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor.swift
index f7e41fad9..04f5254bf 100644
--- a/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor.swift
+++ b/Sources/GRPCCore/Call/Client/Internal/ClientRPCExecutor.swift
@@ -112,7 +112,7 @@ extension ClientRPCExecutor {
   ///   - deserializer: A deserializer to convert bytes to output messages.
   ///   - interceptors: An array of interceptors which the request and response pass through. The
   ///       interceptors will be called in the order of the array.
-  ///   - stream: The stream to excecute the RPC on.
+  ///   - stream: The stream to execute the RPC on.
   /// - Returns: The deserialized response.
   @inlinable  // would be private
   static func _execute<Input: Sendable, Output: Sendable, Bytes: GRPCContiguousBytes>(
diff --git a/Sources/GRPCCore/Call/Client/Internal/ClientResponse+Convenience.swift b/Sources/GRPCCore/Call/Client/Internal/ClientResponse+Convenience.swift
index 41c3d0244..14ec4ade8 100644
--- a/Sources/GRPCCore/Call/Client/Internal/ClientResponse+Convenience.swift
+++ b/Sources/GRPCCore/Call/Client/Internal/ClientResponse+Convenience.swift
@@ -87,7 +87,7 @@ extension StreamingClientResponse {
   /// Creates a streaming response from the given status and metadata.
   ///
   /// If the ``Status`` has code ``Status/Code-swift.struct/ok`` then an accepted stream is created
-  /// containing only the provided metadata. Otherwise a failed response is returned with an error
+  /// containing only the provided metadata. Otherwise, a failed response is returned with an error
   /// created from the status and metadata.
   ///
   /// - Parameters:
diff --git a/Sources/GRPCCore/Call/Client/Internal/ClientStreamExecutor.swift b/Sources/GRPCCore/Call/Client/Internal/ClientStreamExecutor.swift
index 74aac103f..44cece2c0 100644
--- a/Sources/GRPCCore/Call/Client/Internal/ClientStreamExecutor.swift
+++ b/Sources/GRPCCore/Call/Client/Internal/ClientStreamExecutor.swift
@@ -26,7 +26,7 @@ internal enum ClientStreamExecutor {
   ///   - attempt: The attempt number for the RPC that will be executed.
   ///   - serializer: A request serializer.
   ///   - deserializer: A response deserializer.
-  ///   - stream: The stream to excecute the RPC on.
+  ///   - stream: The stream to execute the RPC on.
   /// - Returns: A streamed response.
   @inlinable
   static func execute<Input: Sendable, Output: Sendable, Bytes: GRPCContiguousBytes>(
diff --git a/Sources/GRPCCore/Configuration/MethodConfig.swift b/Sources/GRPCCore/Configuration/MethodConfig.swift
index 3decbfe58..65901a08c 100644
--- a/Sources/GRPCCore/Configuration/MethodConfig.swift
+++ b/Sources/GRPCCore/Configuration/MethodConfig.swift
@@ -68,7 +68,7 @@ public struct MethodConfig: Hashable, Sendable {
   /// Whether RPCs for this method should wait until the connection is ready.
   ///
   /// If `false` the RPC will abort immediately if there is a transient failure connecting to
-  /// the server. Otherwise gRPC will attempt to connect until the deadline is exceeded.
+  /// the server. Otherwise, gRPC will attempt to connect until the deadline is exceeded.
   public var waitForReady: Bool?
 
   /// The default timeout for the RPC.
diff --git a/Sources/GRPCCore/Configuration/ServiceConfig.swift b/Sources/GRPCCore/Configuration/ServiceConfig.swift
index a96119f1e..f2ce07793 100644
--- a/Sources/GRPCCore/Configuration/ServiceConfig.swift
+++ b/Sources/GRPCCore/Configuration/ServiceConfig.swift
@@ -54,7 +54,7 @@ public struct ServiceConfig: Hashable, Sendable {
   ///
   /// - Parameters:
   ///   - methodConfig: Per-method configuration.
-  ///   - loadBalancingConfig: Load balancing policies. Clients use the the first supported
+  ///   - loadBalancingConfig: Load balancing policies. Clients use the first supported
   ///       policy when iterating the list in order.
   ///   - retryThrottling: Policy for throttling retries.
   public init(
diff --git a/Sources/GRPCCore/Documentation.docc/Articles/Migration-guide.md b/Sources/GRPCCore/Documentation.docc/Articles/Migration-guide.md
index 493061ef8..12b1f1159 100644
--- a/Sources/GRPCCore/Documentation.docc/Articles/Migration-guide.md
+++ b/Sources/GRPCCore/Documentation.docc/Articles/Migration-guide.md
@@ -325,7 +325,7 @@ let server = GRPCServer(
   transport: .http2NIOPosix(
     // Configure the host and port to listen on.
     address: .ipv4(host: "127.0.0.1", port: 1234),
-    // Configure TLS here, if your're using it.
+    // Configure TLS here, if you're using it.
     transportSecurity: .plaintext,
     config: .defaults { config in
       // Change any of the default config in here.
diff --git a/Sources/GRPCCore/Documentation.docc/Development/Design.md b/Sources/GRPCCore/Documentation.docc/Development/Design.md
index 8175f036f..2dde75b66 100644
--- a/Sources/GRPCCore/Documentation.docc/Development/Design.md
+++ b/Sources/GRPCCore/Documentation.docc/Development/Design.md
@@ -352,7 +352,7 @@ protocol ServiceName.ClientProtocol {
 ```
 
 Each method takes a request appropriate for its RPC type, a serializer, a
-deserializer, a set of options and a handler for processing the response. The
+deserializer, a set of options, and a handler for processing the response. The
 function doesn't return until the response handler has returned and all
 resources associated with the RPC have been cleaned up.
 
diff --git a/Sources/GRPCCore/Documentation.docc/Tutorials/Hello-World/Hello-World.tutorial b/Sources/GRPCCore/Documentation.docc/Tutorials/Hello-World/Hello-World.tutorial
index a16c4edb2..065792d8c 100644
--- a/Sources/GRPCCore/Documentation.docc/Tutorials/Hello-World/Hello-World.tutorial
+++ b/Sources/GRPCCore/Documentation.docc/Tutorials/Hello-World/Hello-World.tutorial
@@ -71,7 +71,7 @@
 
     @Steps {
       @Step {
-        Open `HelloWorld.proto` in to see how the service is defined.
+        Open `HelloWorld.proto` to see how the service is defined.
 
         @Code(name: "HelloWorld.proto", file: "hello-world-sec03-step01.proto")
       }
diff --git a/Sources/GRPCCore/Documentation.docc/Tutorials/Route-Guide/Route-Guide.tutorial b/Sources/GRPCCore/Documentation.docc/Tutorials/Route-Guide/Route-Guide.tutorial
index c1d8e42b2..b25b46e60 100644
--- a/Sources/GRPCCore/Documentation.docc/Tutorials/Route-Guide/Route-Guide.tutorial
+++ b/Sources/GRPCCore/Documentation.docc/Tutorials/Route-Guide/Route-Guide.tutorial
@@ -346,7 +346,7 @@
         following code in.
 
         `@main` indicates that the type contains the entry point to the program. In this case,
-        because `RouteGuide` conforms to `AsyncParseableCommand`, the entry point to our program
+        because `RouteGuide` conforms to `AsyncParsableCommand`, the entry point to our program
         is the `run()` method. The `@Flag` annotation marks `server` as a flag to the argument
         parser so that you can specify `--server` when running the program.
 
diff --git a/Sources/GRPCCore/Internal/Base64.swift b/Sources/GRPCCore/Internal/Base64.swift
index 24501f3ab..161fc97f1 100644
--- a/Sources/GRPCCore/Internal/Base64.swift
+++ b/Sources/GRPCCore/Internal/Base64.swift
@@ -163,7 +163,7 @@ enum Base64 {
     case (true, 1):
       throw DecodingError.invalidLength
     default:
-      // everythin alright so far
+      // everything alright so far
       break
     }
 
diff --git a/Sources/GRPCCore/Internal/Metadata+GRPC.swift b/Sources/GRPCCore/Internal/Metadata+GRPC.swift
index 76c7e459d..70ccec1b3 100644
--- a/Sources/GRPCCore/Internal/Metadata+GRPC.swift
+++ b/Sources/GRPCCore/Internal/Metadata+GRPC.swift
@@ -93,7 +93,7 @@ extension Metadata {
         let attoseconds = Int64(remainingMilliseconds) * 1_000_000_000_000_000
         self = .retryAfter(Duration(secondsComponent: seconds, attosecondsComponent: attoseconds))
       } else {
-        // Negative or not parseable means stop trying.
+        // Negative or not parsable means stop trying.
         // Source: https://github.com/grpc/proposal/blob/0e1807a6e30a1a915c0dcadc873bca92b9fa9720/A6-client-retries.md
         self = .stopRetrying
       }
diff --git a/Sources/GRPCCore/Internal/String+Extensions.swift b/Sources/GRPCCore/Internal/String+Extensions.swift
index dd4d68397..aed0895ed 100644
--- a/Sources/GRPCCore/Internal/String+Extensions.swift
+++ b/Sources/GRPCCore/Internal/String+Extensions.swift
@@ -36,7 +36,7 @@ extension UInt8 {
 }
 
 extension String.UTF8View {
-  /// Compares two UTF8 strings as case insensitive ASCII bytes.
+  /// Compares two UTF8 strings as case-insensitive ASCII bytes.
   ///
   /// - Parameter bytes: The string constant in the form of a collection of `UInt8`
   /// - Returns: Whether the collection contains **EXACTLY** this array or no, but by ignoring case.
diff --git a/Sources/GRPCCore/Metadata.swift b/Sources/GRPCCore/Metadata.swift
index b3ea93810..53cdab34c 100644
--- a/Sources/GRPCCore/Metadata.swift
+++ b/Sources/GRPCCore/Metadata.swift
@@ -110,7 +110,7 @@ public struct Metadata: Sendable, Hashable {
     /// - Parameters:
     ///   - key: The key for the key-value pair.
     ///   - value: The value to be associated to the given key. If it's a binary value, then the associated
-    ///   key must end in "-bin", otherwise, this method will produce an assertion failure.
+    ///   key must end in "-bin"; otherwise, this method will produce an assertion failure.
     init(key: String, value: Value) {
       if case .binary = value {
         assert(key.hasSuffix("-bin"), "Keys for binary values must end in -bin")
diff --git a/Sources/GRPCCore/MethodDescriptor.swift b/Sources/GRPCCore/MethodDescriptor.swift
index a677ff982..d392dbfbb 100644
--- a/Sources/GRPCCore/MethodDescriptor.swift
+++ b/Sources/GRPCCore/MethodDescriptor.swift
@@ -26,7 +26,7 @@ public struct MethodDescriptor: Sendable, Hashable {
   /// The fully qualified method name in the format "package.service/method".
   ///
   /// For example, the fully qualified name of the "SayHello" method of the "Greeter" service in
-  /// "helloworld" package is "helloworld.Greeter/SayHelllo".
+  /// "helloworld" package is "helloworld.Greeter/SayHello".
   public var fullyQualifiedMethod: String {
     "\(self.service)/\(self.method)"
   }
diff --git a/Sources/GRPCCore/RPCError.swift b/Sources/GRPCCore/RPCError.swift
index e6baf1d2b..aeff6c776 100644
--- a/Sources/GRPCCore/RPCError.swift
+++ b/Sources/GRPCCore/RPCError.swift
@@ -210,7 +210,7 @@ extension RPCError.Code {
   /// The caller does not have permission to execute the specified operation.
   /// ``permissionDenied`` must not be used for rejections caused by exhausting
   /// some resource (use ``resourceExhausted`` instead for those errors).
-  /// ``permissionDenied`` must not be used if the caller can not be identified
+  /// ``permissionDenied`` must not be used if the caller cannot be identified
   /// (use ``unauthenticated`` instead for those errors).
   public static let permissionDenied = Self(code: .permissionDenied)
 
diff --git a/Sources/GRPCCore/Status.swift b/Sources/GRPCCore/Status.swift
index 2b85d038f..9bea7f764 100644
--- a/Sources/GRPCCore/Status.swift
+++ b/Sources/GRPCCore/Status.swift
@@ -230,7 +230,7 @@ extension Status.Code {
   /// The caller does not have permission to execute the specified operation.
   /// ``permissionDenied`` must not be used for rejections caused by exhausting
   /// some resource (use ``resourceExhausted`` instead for those errors).
-  /// ``permissionDenied`` must not be used if the caller can not be identified
+  /// ``permissionDenied`` must not be used if the caller cannot be identified
   /// (use ``unauthenticated`` instead for those errors).
   public static let permissionDenied = Self(code: .permissionDenied)
 
diff --git a/Sources/GRPCCore/Streaming/Internal/BroadcastAsyncSequence.swift b/Sources/GRPCCore/Streaming/Internal/BroadcastAsyncSequence.swift
index c40e01585..3ce4bdd18 100644
--- a/Sources/GRPCCore/Streaming/Internal/BroadcastAsyncSequence.swift
+++ b/Sources/GRPCCore/Streaming/Internal/BroadcastAsyncSequence.swift
@@ -1575,7 +1575,7 @@ extension _BroadcastSequenceStateMachine {
       @usableFromInline
       var nextElementID: _BroadcastSequenceStateMachine<Element>.Elements.ID
 
-      /// A continuation which which will be resumed when the next element becomes available.
+      /// A continuation which will be resumed when the next element becomes available.
       @usableFromInline
       var continuation: ConsumerContinuation?
 
@@ -1592,7 +1592,7 @@ extension _BroadcastSequenceStateMachine {
 
       /// Returns and sets the continuation to `nil` if one exists.
       ///
-      /// The next element ID is advanced if a contination exists.
+      /// The next element ID is advanced if a continuation exists.
       ///
       /// - Returns: The continuation, if one existed.
       @inlinable
diff --git a/Sources/GRPCCore/Transport/ClientTransport.swift b/Sources/GRPCCore/Transport/ClientTransport.swift
index 89d21e1c3..b145bb036 100644
--- a/Sources/GRPCCore/Transport/ClientTransport.swift
+++ b/Sources/GRPCCore/Transport/ClientTransport.swift
@@ -63,7 +63,7 @@ public protocol ClientTransport<Bytes>: Sendable {
   /// running ``connect()``.
   func beginGracefulShutdown()
 
-  /// Opens a stream using the transport, and uses it as input into a user-provided closure alongisde the given context.
+  /// Opens a stream using the transport, and uses it as input into a user-provided closure alongside the given context.
   ///
   /// - Important: The opened stream is closed after the closure is finished.
   ///
diff --git a/Tests/GRPCCodeGenTests/Internal/Renderer/TextBasedRendererTests.swift b/Tests/GRPCCodeGenTests/Internal/Renderer/TextBasedRendererTests.swift
index 080204962..f3ba7718a 100644
--- a/Tests/GRPCCodeGenTests/Internal/Renderer/TextBasedRendererTests.swift
+++ b/Tests/GRPCCodeGenTests/Internal/Renderer/TextBasedRendererTests.swift
@@ -880,10 +880,10 @@ final class Test_TextBasedRenderer: XCTestCase {
 
   func testProtocol() throws {
     try _test(
-      .init(name: "Protocoly"),
+      .init(name: "Protocolly"),
       renderedBy: { $0.renderProtocol(_:) },
       rendersAs: #"""
-        protocol Protocoly {}
+        protocol Protocolly {}
         """#
     )
   }
diff --git a/Tests/GRPCCodeGenTests/Internal/Translator/IDLToStructuredSwiftTranslatorSnippetBasedTests.swift b/Tests/GRPCCodeGenTests/Internal/Translator/IDLToStructuredSwiftTranslatorSnippetBasedTests.swift
index 33f4b0d87..6bff28c02 100644
--- a/Tests/GRPCCodeGenTests/Internal/Translator/IDLToStructuredSwiftTranslatorSnippetBasedTests.swift
+++ b/Tests/GRPCCodeGenTests/Internal/Translator/IDLToStructuredSwiftTranslatorSnippetBasedTests.swift
@@ -99,7 +99,7 @@ final class IDLToStructuredSwiftTranslatorSnippetBasedTests: XCTestCase {
           /// This protocol is higher level than ``StreamingServiceProtocol`` but lower level than
           /// the ``SimpleServiceProtocol``, it provides access to request and response metadata and
           /// trailing response metadata. If you don't need these then consider using
-          /// the ``SimpleServiceProtocol``. If you need fine grained control over your RPCs then
+          /// the ``SimpleServiceProtocol``. If you need fine-grained control over your RPCs then
           /// use ``StreamingServiceProtocol``.
           ///
           /// > Source IDL Documentation:
diff --git a/Tests/GRPCCodeGenTests/Internal/Translator/ServerCodeTranslatorSnippetBasedTests.swift b/Tests/GRPCCodeGenTests/Internal/Translator/ServerCodeTranslatorSnippetBasedTests.swift
index 9db99776f..d11f644f7 100644
--- a/Tests/GRPCCodeGenTests/Internal/Translator/ServerCodeTranslatorSnippetBasedTests.swift
+++ b/Tests/GRPCCodeGenTests/Internal/Translator/ServerCodeTranslatorSnippetBasedTests.swift
@@ -84,7 +84,7 @@ final class ServerCodeTranslatorSnippetBasedTests {
           /// This protocol is higher level than ``StreamingServiceProtocol`` but lower level than
           /// the ``SimpleServiceProtocol``, it provides access to request and response metadata and
           /// trailing response metadata. If you don't need these then consider using
-          /// the ``SimpleServiceProtocol``. If you need fine grained control over your RPCs then
+          /// the ``SimpleServiceProtocol``. If you need fine-grained control over your RPCs then
           /// use ``StreamingServiceProtocol``.
           ///
           /// > Source IDL Documentation:
diff --git a/Tests/GRPCCoreTests/Call/Client/ClientResponseTests.swift b/Tests/GRPCCoreTests/Call/Client/ClientResponseTests.swift
index 30df1465c..ff09d73df 100644
--- a/Tests/GRPCCoreTests/Call/Client/ClientResponseTests.swift
+++ b/Tests/GRPCCoreTests/Call/Client/ClientResponseTests.swift
@@ -164,7 +164,7 @@ final class ClientResponseTests: XCTestCase {
   func testStreamToSingleConversionForInvalidStream() async throws {
     let bodies: [[StreamingClientResponse<String>.Contents.BodyPart]] = [
       [],  // Empty stream
-      [.trailingMetadata([:]), .trailingMetadata([:])],  // Multiple metadatas
+      [.trailingMetadata([:]), .trailingMetadata([:])],  // Multiple metadata
       [.trailingMetadata([:]), .message("")],  // Metadata then message
     ]
 
diff --git a/Tests/GRPCCoreTests/Test Utilities/Coding+JSON.swift b/Tests/GRPCCoreTests/Test Utilities/Coding+JSON.swift
index bb734479f..d8dd275a8 100644
--- a/Tests/GRPCCoreTests/Test Utilities/Coding+JSON.swift	
+++ b/Tests/GRPCCoreTests/Test Utilities/Coding+JSON.swift	
@@ -41,7 +41,7 @@ struct JSONDeserializer<Message: Codable>: MessageDeserializer {
       let data = serializedMessageBytes.withUnsafeBytes { Data($0) }
       return try jsonDecoder.decode(Message.self, from: data)
     } catch {
-      throw RPCError(code: .internalError, message: "Can't deserialze message from JSON. \(error)")
+      throw RPCError(code: .internalError, message: "Can't deserialize message from JSON. \(error)")
     }
   }
 }
diff --git a/Tests/GRPCInProcessTransportTests/Test Utilities/JSONSerializing.swift b/Tests/GRPCInProcessTransportTests/Test Utilities/JSONSerializing.swift
index ed44053c9..7dc54764e 100644
--- a/Tests/GRPCInProcessTransportTests/Test Utilities/JSONSerializing.swift	
+++ b/Tests/GRPCInProcessTransportTests/Test Utilities/JSONSerializing.swift	
@@ -41,7 +41,7 @@ struct JSONDeserializer<Message: Codable>: MessageDeserializer {
       let data = serializedMessageBytes.withUnsafeBytes { Data($0) }
       return try jsonDecoder.decode(Message.self, from: data)
     } catch {
-      throw RPCError(code: .internalError, message: "Can't deserialze message from JSON. \(error)")
+      throw RPCError(code: .internalError, message: "Can't deserialize message from JSON. \(error)")
     }
   }
 }
diff --git a/dev/protos/fetch.sh b/dev/protos/fetch.sh
index 2032a2408..023e0a816 100755
--- a/dev/protos/fetch.sh
+++ b/dev/protos/fetch.sh
@@ -28,7 +28,7 @@ git clone --depth 1 https://github.com/googleapis/googleapis.git "$checkouts/goo
 # Remove the old protos.
 rm -rf "$upstream"
 
-# Create new directories to poulate. These are based on proto package name
+# Create new directories to populate. These are based on proto package name
 # rather than source repository name.
 mkdir -p "$upstream/google"
 mkdir -p "$upstream/grpc/core"