diff --git a/traefik/templates/_service.tpl b/traefik/templates/_service.tpl
index e82c9a099..e7b58921e 100644
--- a/traefik/templates/_service.tpl
+++ b/traefik/templates/_service.tpl
@@ -46,6 +46,9 @@
     {{- if $config.nodePort }}
     nodePort: {{ $config.nodePort }}
     {{- end }}
+    {{- if $config.appProtocol }}
+    appProtocol: {{ $config.appProtocol }}
+    {{- end }}
   {{- end }}
   {{- if $config.http3 }}
   {{- if $config.http3.enabled }}
@@ -57,6 +60,9 @@
     {{- if $config.nodePort }}
     nodePort: {{ $config.nodePort }}
     {{- end }}
+    {{- if $config.appProtocol }}
+    appProtocol: {{ $config.appProtocol }}
+    {{- end }}
   {{- end }}
   {{- end }}
   {{- end }}
diff --git a/traefik/tests/service-config_test.yaml b/traefik/tests/service-config_test.yaml
index a05f8fbb8..ca2f976ae 100644
--- a/traefik/tests/service-config_test.yaml
+++ b/traefik/tests/service-config_test.yaml
@@ -177,6 +177,28 @@ tests:
           value:
             - IPv6
           documentIndex: 0
+  - it: should not have appProtocol when not specified
+    documentIndex: 0
+    asserts:
+      - isNull:
+          path: spec.ports[0].appProtocol
+      - isNull:
+          path: spec.ports[1].appProtocol
+  - it: should have custom appProtocol when specified via values
+    set:
+      ports:
+        web:
+          appProtocol: http
+        websecure:
+          appProtocol: https
+    documentIndex: 0
+    asserts:
+      - equal:
+          path: spec.ports[0].appProtocol
+          value: http
+      - equal:
+          path: spec.ports[1].appProtocol
+          value: https
   - it: should use default websecure UDP port when http3 is enabled
     set:
       ports:
diff --git a/traefik/values.yaml b/traefik/values.yaml
index abd5da011..345bbd8be 100644
--- a/traefik/values.yaml
+++ b/traefik/values.yaml
@@ -612,6 +612,8 @@ ports:
     ## -- The port protocol (TCP/UDP)
     protocol: TCP
     # nodePort: 32443
+    ## -- Specify an application protocol. This may be used as a hint for a Layer 7 load balancer.
+    # appProtocol: https
     #
     ## -- Enable HTTP/3 on the entrypoint
     ## Enabling it will also enable http3 experimental feature