diff --git a/operations/helm/charts/grafana-agent/CHANGELOG.md b/operations/helm/charts/grafana-agent/CHANGELOG.md
index 47a802cbce73..a6a00a5f88f7 100644
--- a/operations/helm/charts/grafana-agent/CHANGELOG.md
+++ b/operations/helm/charts/grafana-agent/CHANGELOG.md
@@ -10,6 +10,10 @@ internal API changes are not present.
 Unreleased
 ----------
 
+### Features
+
+- Allow setting nodePort for service. (@ryayon)
+
 0.36.0 (2024-02-27)
 -------------------
 
diff --git a/operations/helm/charts/grafana-agent/README.md b/operations/helm/charts/grafana-agent/README.md
index f1ea72470654..51ea7498b654 100644
--- a/operations/helm/charts/grafana-agent/README.md
+++ b/operations/helm/charts/grafana-agent/README.md
@@ -127,6 +127,7 @@ use the older mode (called "static mode"), set the `agent.mode` value to
 | service.clusterIP | string | `""` | Cluster IP, can be set to None, empty "" or an IP address |
 | service.enabled | bool | `true` | Creates a Service for the controller's pods. |
 | service.internalTrafficPolicy | string | `"Cluster"` | Value for internal traffic policy. 'Cluster' or 'Local' |
+| service.nodePort | int | `31128` | NodePort port. Only takes effect when `service.type: NodePort` |
 | service.type | string | `"ClusterIP"` | Service type |
 | serviceAccount.additionalLabels | object | `{}` | Additional labels to add to the created service account. |
 | serviceAccount.annotations | object | `{}` | Annotations to add to the created service account. |
diff --git a/operations/helm/charts/grafana-agent/templates/service.yaml b/operations/helm/charts/grafana-agent/templates/service.yaml
index a3180d4715ab..34427f822ac0 100644
--- a/operations/helm/charts/grafana-agent/templates/service.yaml
+++ b/operations/helm/charts/grafana-agent/templates/service.yaml
@@ -19,6 +19,9 @@ spec:
   internalTrafficPolicy: {{.Values.service.internalTrafficPolicy}}
   ports:
     - name: http-metrics
+      {{- if eq .Values.service.type "NodePort" }}
+      nodePort: {{ .Values.service.nodePort }}
+      {{- end }}
       port: {{ .Values.agent.listenPort }}
       targetPort: {{ .Values.agent.listenPort }}
       protocol: "TCP"
diff --git a/operations/helm/charts/grafana-agent/values.yaml b/operations/helm/charts/grafana-agent/values.yaml
index d481ae0ab290..588274fa05be 100644
--- a/operations/helm/charts/grafana-agent/values.yaml
+++ b/operations/helm/charts/grafana-agent/values.yaml
@@ -254,6 +254,8 @@ service:
   enabled: true
   # -- Service type
   type: ClusterIP
+  # -- NodePort port. Only takes effect when `service.type: NodePort`
+  nodePort: 31128
   # -- Cluster IP, can be set to None, empty "" or an IP address
   clusterIP: ''
   # -- Value for internal traffic policy. 'Cluster' or 'Local'