diff --git a/docs/content/reference/dynamic-configuration/kubernetes-crd.yml b/docs/content/reference/dynamic-configuration/kubernetes-crd.yml
index 4c841827b..67967d898 100644
--- a/docs/content/reference/dynamic-configuration/kubernetes-crd.yml
+++ b/docs/content/reference/dynamic-configuration/kubernetes-crd.yml
@@ -222,6 +222,7 @@ spec:
     - match: HostSNI(`bar.com`)
       services:
         - name: whoamitcp
+          namespace: default
           port: 8080
   tls:
     secretName: foosecret
diff --git a/integration/fixtures/k8s/05-ingressroutetcp.yml b/integration/fixtures/k8s/05-ingressroutetcp.yml
index 8c9fbf7d1..32bf76864 100644
--- a/integration/fixtures/k8s/05-ingressroutetcp.yml
+++ b/integration/fixtures/k8s/05-ingressroutetcp.yml
@@ -11,6 +11,7 @@ spec:
   - match: HostSNI(`*`)
     services:
     - name: whoamitcp
+      namespace: default
       port: 8080
   tls:
     options:
diff --git a/pkg/provider/kubernetes/crd/fixtures/tcp/services.yml b/pkg/provider/kubernetes/crd/fixtures/tcp/services.yml
index 5f6615f2d..aa38c760b 100644
--- a/pkg/provider/kubernetes/crd/fixtures/tcp/services.yml
+++ b/pkg/provider/kubernetes/crd/fixtures/tcp/services.yml
@@ -86,3 +86,48 @@ subsets:
     ports:
       - name: web-secure
         port: 443
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: whoamitcp3
+  namespace: ns3
+
+spec:
+  ports:
+    - name: myapp3
+      port: 8083
+  selector:
+    app: containous
+    task: whoamitcp3
+
+---
+kind: Endpoints
+apiVersion: v1
+metadata:
+  name: whoamitcp3
+  namespace: ns3
+
+subsets:
+  - addresses:
+      - ip: 10.10.0.7
+      - ip: 10.10.0.8
+    ports:
+      - name: myapp3
+        port: 8083
+
+---
+kind: Endpoints
+apiVersion: v1
+metadata:
+  name: whoamitcp3
+  namespace: ns4
+
+subsets:
+  - addresses:
+      - ip: 10.10.0.9
+      - ip: 10.10.0.10
+    ports:
+      - name: myapp4
+        port: 8084
diff --git a/pkg/provider/kubernetes/crd/fixtures/tcp/with_different_services_ns.yml b/pkg/provider/kubernetes/crd/fixtures/tcp/with_different_services_ns.yml
new file mode 100644
index 000000000..4d89d1184
--- /dev/null
+++ b/pkg/provider/kubernetes/crd/fixtures/tcp/with_different_services_ns.yml
@@ -0,0 +1,31 @@
+apiVersion: traefik.containo.us/v1alpha1
+kind: IngressRouteTCP
+metadata:
+  name: test.route
+  namespace: default
+
+spec:
+  entryPoints:
+    - foo
+
+  routes:
+  - match: HostSNI(`foo.com`)
+    services:
+    # without namespace
+    - name: whoamitcp
+      port: 8000
+      weight: 2
+    # with default namespace
+    - name: whoamitcp2
+      namespace: default
+      port: 8080
+      weight: 3
+    # with custom namespace
+    - name: whoamitcp3
+      namespace: ns3
+      port: 8083
+      weight: 4
+    # with unknown namespace
+    - name: whoamitcp
+      namespace: unknwonns
+      port: 8080
diff --git a/pkg/provider/kubernetes/crd/kubernetes_tcp.go b/pkg/provider/kubernetes/crd/kubernetes_tcp.go
index 1a27885d4..95e6fb9e7 100644
--- a/pkg/provider/kubernetes/crd/kubernetes_tcp.go
+++ b/pkg/provider/kubernetes/crd/kubernetes_tcp.go
@@ -129,7 +129,12 @@ func (p *Provider) loadIngressRouteTCPConfiguration(ctx context.Context, client
 }
 
 func createLoadBalancerServerTCP(client Client, namespace string, service v1alpha1.ServiceTCP) (*dynamic.TCPService, error) {
-	servers, err := loadTCPServers(client, namespace, service)
+	ns := namespace
+	if len(service.Namespace) > 0 {
+		ns = service.Namespace
+	}
+
+	servers, err := loadTCPServers(client, ns, service)
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/provider/kubernetes/crd/kubernetes_test.go b/pkg/provider/kubernetes/crd/kubernetes_test.go
index 7444dd353..cfee54b7c 100644
--- a/pkg/provider/kubernetes/crd/kubernetes_test.go
+++ b/pkg/provider/kubernetes/crd/kubernetes_test.go
@@ -191,6 +191,83 @@ func TestLoadIngressRouteTCPs(t *testing.T) {
 				TLS: &dynamic.TLSConfiguration{},
 			},
 		},
+		{
+			desc:  "One ingress Route with different services namespaces",
+			paths: []string{"tcp/services.yml", "tcp/with_different_services_ns.yml"},
+			expected: &dynamic.Configuration{
+				TCP: &dynamic.TCPConfiguration{
+					Routers: map[string]*dynamic.TCPRouter{
+						"default-test.route-fdd3e9338e47a45efefc": {
+							EntryPoints: []string{"foo"},
+							Service:     "default-test.route-fdd3e9338e47a45efefc",
+							Rule:        "HostSNI(`foo.com`)",
+						},
+					},
+					Services: map[string]*dynamic.TCPService{
+						"default-test.route-fdd3e9338e47a45efefc": {
+							Weighted: &dynamic.TCPWeightedRoundRobin{
+								Services: []dynamic.TCPWRRService{
+									{
+										Name:   "default-test.route-fdd3e9338e47a45efefc-whoamitcp-8000",
+										Weight: func(i int) *int { return &i }(2),
+									},
+									{
+										Name:   "default-test.route-fdd3e9338e47a45efefc-whoamitcp2-8080",
+										Weight: func(i int) *int { return &i }(3),
+									},
+									{
+										Name:   "default-test.route-fdd3e9338e47a45efefc-whoamitcp3-8083",
+										Weight: func(i int) *int { return &i }(4),
+									},
+								},
+							},
+						},
+						"default-test.route-fdd3e9338e47a45efefc-whoamitcp-8000": {
+							LoadBalancer: &dynamic.TCPServersLoadBalancer{
+								Servers: []dynamic.TCPServer{
+									{
+										Address: "10.10.0.1:8000",
+									},
+									{
+										Address: "10.10.0.2:8000",
+									},
+								},
+							},
+						},
+						"default-test.route-fdd3e9338e47a45efefc-whoamitcp2-8080": {
+							LoadBalancer: &dynamic.TCPServersLoadBalancer{
+								Servers: []dynamic.TCPServer{
+									{
+										Address: "10.10.0.3:8080",
+									},
+									{
+										Address: "10.10.0.4:8080",
+									},
+								},
+							},
+						},
+						"default-test.route-fdd3e9338e47a45efefc-whoamitcp3-8083": {
+							LoadBalancer: &dynamic.TCPServersLoadBalancer{
+								Servers: []dynamic.TCPServer{
+									{
+										Address: "10.10.0.7:8083",
+									},
+									{
+										Address: "10.10.0.8:8083",
+									},
+								},
+							},
+						},
+					},
+				},
+				HTTP: &dynamic.HTTPConfiguration{
+					Routers:     map[string]*dynamic.Router{},
+					Middlewares: map[string]*dynamic.Middleware{},
+					Services:    map[string]*dynamic.Service{},
+				},
+				TLS: &dynamic.TLSConfiguration{},
+			},
+		},
 		{
 			desc:         "Ingress class does not match",
 			paths:        []string{"tcp/services.yml", "tcp/simple.yml"},
diff --git a/pkg/provider/kubernetes/crd/traefik/v1alpha1/ingressroutetcp.go b/pkg/provider/kubernetes/crd/traefik/v1alpha1/ingressroutetcp.go
index 50dc7a49e..b6b47b22f 100644
--- a/pkg/provider/kubernetes/crd/traefik/v1alpha1/ingressroutetcp.go
+++ b/pkg/provider/kubernetes/crd/traefik/v1alpha1/ingressroutetcp.go
@@ -46,6 +46,7 @@ type TLSOptionTCPRef struct {
 // ServiceTCP defines an upstream to proxy traffic.
 type ServiceTCP struct {
 	Name             string `json:"name"`
+	Namespace        string `json:"namespace"`
 	Port             int32  `json:"port"`
 	Weight           *int   `json:"weight,omitempty"`
 	TerminationDelay *int   `json:"terminationDelay,omitempty"`