diff --git a/.changeset/pink-pets-jump.md b/.changeset/pink-pets-jump.md
new file mode 100644
index 0000000000..1d65169349
--- /dev/null
+++ b/.changeset/pink-pets-jump.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-defaults': patch
+---
+
+Support `client: pg+google-cloud-sql` in database client for usage with `@google-cloud/cloud-sql-connector` and `iam` auth
diff --git a/packages/backend-defaults/package.json b/packages/backend-defaults/package.json
index 4612cac52b..b0f77d5c44 100644
--- a/packages/backend-defaults/package.json
+++ b/packages/backend-defaults/package.json
@@ -198,6 +198,7 @@
     "@backstage/backend-plugin-api": "workspace:^",
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^",
+    "@google-cloud/cloud-sql-connector": "^1.4.0",
     "@types/archiver": "^6.0.0",
     "@types/base64-stream": "^1.0.2",
     "@types/concat-stream": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 915e711688..1dfd85032c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3599,6 +3599,7 @@ __metadata:
     "@backstage/plugin-events-node": "workspace:^"
     "@backstage/plugin-permission-node": "workspace:^"
     "@backstage/types": "workspace:^"
+    "@google-cloud/cloud-sql-connector": ^1.4.0
     "@google-cloud/storage": ^7.0.0
     "@keyv/memcache": ^2.0.1
     "@keyv/redis": ^4.0.1
@@ -10343,6 +10344,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@google-cloud/cloud-sql-connector@npm:^1.4.0":
+  version: 1.4.0
+  resolution: "@google-cloud/cloud-sql-connector@npm:1.4.0"
+  dependencies:
+    "@googleapis/sqladmin": ^24.0.0
+    gaxios: ^6.1.1
+    google-auth-library: ^9.2.0
+    p-throttle: ^5.1.0
+  checksum: c4ac2cc8cc24cc5966f146fe5686493fdb0bb4fc43a27ec086bd116f5ce475ca88f5e5e5fb79d17e6c31fb1a752d2f7e94433db17eea787696556c45415a31a1
+  languageName: node
+  linkType: hard
+
 "@google-cloud/container@npm:^5.0.0":
   version: 5.19.0
   resolution: "@google-cloud/container@npm:5.19.0"
@@ -10412,6 +10425,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@googleapis/sqladmin@npm:^24.0.0":
+  version: 24.0.0
+  resolution: "@googleapis/sqladmin@npm:24.0.0"
+  dependencies:
+    googleapis-common: ^7.0.0
+  checksum: b1c93d18b800ecd5af79dc6728e6b030f6918a1c5e2094d2dd7b460e3b2033cb9ce4f4ffe5b6155ecc2f699b8e4bdf0a94999786671b8fa05e1d8f3ce90cf466
+  languageName: node
+  linkType: hard
+
 "@graphiql/react@npm:^0.20.3":
   version: 0.20.3
   resolution: "@graphiql/react@npm:0.20.3"
@@ -30116,7 +30138,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"gaxios@npm:^6.0.0, gaxios@npm:^6.0.2, gaxios@npm:^6.1.1":
+"gaxios@npm:^6.0.0, gaxios@npm:^6.0.2, gaxios@npm:^6.0.3, gaxios@npm:^6.1.1":
   version: 6.7.1
   resolution: "gaxios@npm:6.7.1"
   dependencies:
@@ -30598,7 +30620,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"google-auth-library@npm:^9.0.0, google-auth-library@npm:^9.3.0, google-auth-library@npm:^9.6.3":
+"google-auth-library@npm:^9.0.0, google-auth-library@npm:^9.2.0, google-auth-library@npm:^9.3.0, google-auth-library@npm:^9.6.3, google-auth-library@npm:^9.7.0":
   version: 9.15.0
   resolution: "google-auth-library@npm:9.15.0"
   dependencies:
@@ -30639,6 +30661,20 @@ __metadata:
   languageName: node
   linkType: hard
 
+"googleapis-common@npm:^7.0.0":
+  version: 7.2.0
+  resolution: "googleapis-common@npm:7.2.0"
+  dependencies:
+    extend: ^3.0.2
+    gaxios: ^6.0.3
+    google-auth-library: ^9.7.0
+    qs: ^6.7.0
+    url-template: ^2.0.8
+    uuid: ^9.0.0
+  checksum: 58f520134c9d6f439ef81919471689f0278ef0ffdbd50c693a59282d95141be74df3a5614c25347c140fc44201e0ef998300389f4cbf51502f2351e67c758ab6
+  languageName: node
+  linkType: hard
+
 "gopd@npm:^1.0.1":
   version: 1.0.1
   resolution: "gopd@npm:1.0.1"
@@ -38309,6 +38345,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"p-throttle@npm:^5.1.0":
+  version: 5.1.0
+  resolution: "p-throttle@npm:5.1.0"
+  checksum: c412429cbb759a0772a083200a556e5866d4a7cb5383a9cc85880f47f07f4b1787fc33d2c824ab659fff0fc4a34a56e1d0712e88808f0c0ae0ffbe93b54f46c1
+  languageName: node
+  linkType: hard
+
 "p-timeout@npm:^3.2.0":
   version: 3.2.0
   resolution: "p-timeout@npm:3.2.0"
@@ -40271,7 +40314,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"qs@npm:^6.10.1, qs@npm:^6.10.3, qs@npm:^6.11.0, qs@npm:^6.12.2, qs@npm:^6.9.4":
+"qs@npm:^6.10.1, qs@npm:^6.10.3, qs@npm:^6.11.0, qs@npm:^6.12.2, qs@npm:^6.7.0, qs@npm:^6.9.4":
   version: 6.13.1
   resolution: "qs@npm:6.13.1"
   dependencies:
@@ -46116,6 +46159,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"url-template@npm:^2.0.8":
+  version: 2.0.8
+  resolution: "url-template@npm:2.0.8"
+  checksum: 4183fccd74e3591e4154134d4443dccecba9c455c15c7df774f1f1e3fa340fd9bffb903b5beec347196d15ce49c34edf6dec0634a95d170ad6e78c0467d6e13e
+  languageName: node
+  linkType: hard
+
 "url-value-parser@npm:^2.0.0":
   version: 2.0.3
   resolution: "url-value-parser@npm:2.0.3"