diff --git a/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/libpgbouncer.sh b/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/libpgbouncer.sh
index 2f52b7dbfb404..58b361f8a9439 100644
--- a/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/libpgbouncer.sh
+++ b/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/libpgbouncer.sh
@@ -228,6 +228,9 @@ pgbouncer_initialize() {
         if ! is_empty_value "$PGBOUNCER_AUTH_USER"; then
             database_value+=" auth_user=$PGBOUNCER_AUTH_USER"
         fi
+        if ! is_empty_value "$PGBOUNCER_AUTH_DBNAME"; then
+            database_value+=" auth_dbname=$PGBOUNCER_AUTH_DBNAME"
+        fi
         if ! is_empty_value "$PGBOUNCER_CONNECT_QUERY"; then
             database_value+=" connect_query='${PGBOUNCER_CONNECT_QUERY}'"
         fi
diff --git a/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/pgbouncer-env.sh b/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/pgbouncer-env.sh
index e17b76121fb0a..31afc87f81641 100644
--- a/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/pgbouncer-env.sh
+++ b/bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/pgbouncer-env.sh
@@ -29,6 +29,7 @@ pgbouncer_env_vars=(
     PGBOUNCER_PORT
     PGBOUNCER_LISTEN_ADDRESS
     PGBOUNCER_AUTH_USER
+    PGBOUNCER_AUTH_DBNAME
     PGBOUNCER_AUTH_QUERY
     PGBOUNCER_AUTH_TYPE
     PGBOUNCER_AUTH_HBA_FILE
@@ -120,6 +121,7 @@ export PGBOUNCER_DATABASE="${PGBOUNCER_DATABASE:-postgres}"
 export PGBOUNCER_PORT="${PGBOUNCER_PORT:-6432}"
 export PGBOUNCER_LISTEN_ADDRESS="${PGBOUNCER_LISTEN_ADDRESS:-0.0.0.0}"
 export PGBOUNCER_AUTH_USER="${PGBOUNCER_AUTH_USER:-}"
+export PGBOUNCER_AUTH_DBNAME="${PGBOUNCER_AUTH_DBNAME:-}"
 export PGBOUNCER_AUTH_QUERY="${PGBOUNCER_AUTH_QUERY:-}"
 export PGBOUNCER_AUTH_TYPE="${PGBOUNCER_AUTH_TYPE:-scram-sha-256}"
 export PGBOUNCER_AUTH_HBA_FILE="${PGBOUNCER_AUTH_HBA_FILE:-}"
diff --git a/bitnami/pgbouncer/README.md b/bitnami/pgbouncer/README.md
index 2ae36ffb99711..005fae42ce102 100644
--- a/bitnami/pgbouncer/README.md
+++ b/bitnami/pgbouncer/README.md
@@ -121,6 +121,7 @@ To expose a ["fallback database" (wildcard that matches any)](https://www.pgboun
 ### Other options
 
 * `PGBOUNCER_AUTH_USER`: PgBouncer will use this user to connect to the database and query the PostgreSQL backend for a user and password. No defaults.
+* `PGBOUNCER_AUTH_DBNAME`: PgBouncer will use this user database for authentication purposes. No defaults.
 * `PGBOUNCER_AUTH_QUERY`: PgBouncer will use this query to connect to the database and query the PostgreSQL backend for a user and password. No defaults.
 * `PGBOUNCER_AUTH_TYPE`: PgBouncer authentication type. Default: **scram-sha-256**
 * `PGBOUNCER_AUTH_HBA_FILE`: HBA configuration file to use if auth_type is set to hba. No defaults.