diff --git a/pkg/cloudprovider/providers/aws/aws.go b/pkg/cloudprovider/providers/aws/aws.go
index e73257b6572..fb85af28153 100644
--- a/pkg/cloudprovider/providers/aws/aws.go
+++ b/pkg/cloudprovider/providers/aws/aws.go
@@ -1595,6 +1595,10 @@ func (s *AWSCloud) createTags(request *ec2.CreateTagsInput) (*ec2.CreateTagsOutp
 func (s *AWSCloud) EnsureTCPLoadBalancer(name, region string, publicIP net.IP, ports []*api.ServicePort, hosts []string, affinity api.ServiceAffinity) (*api.LoadBalancerStatus, error) {
 	glog.V(2).Infof("EnsureTCPLoadBalancer(%v, %v, %v, %v, %v)", name, region, publicIP, ports, hosts)
 
+	if region != s.region {
+		return nil, fmt.Errorf("requested load balancer region '%s' does not match cluster region '%s'", region, s.region)
+	}
+
 	if affinity != api.ServiceAffinityNone {
 		// ELB supports sticky sessions, but only when configured for HTTP/HTTPS
 		return nil, fmt.Errorf("unsupported load balancer affinity: %v", affinity)
@@ -1729,6 +1733,10 @@ func (s *AWSCloud) EnsureTCPLoadBalancer(name, region string, publicIP net.IP, p
 
 // GetTCPLoadBalancer is an implementation of TCPLoadBalancer.GetTCPLoadBalancer
 func (s *AWSCloud) GetTCPLoadBalancer(name, region string) (*api.LoadBalancerStatus, bool, error) {
+	if region != s.region {
+		return nil, false, fmt.Errorf("requested load balancer region '%s' does not match cluster region '%s'", region, s.region)
+	}
+
 	lb, err := s.describeLoadBalancer(name)
 	if err != nil {
 		return nil, false, err
@@ -1889,6 +1897,10 @@ func (s *AWSCloud) updateInstanceSecurityGroupsForLoadBalancer(lb *elb.LoadBalan
 
 // EnsureTCPLoadBalancerDeleted implements TCPLoadBalancer.EnsureTCPLoadBalancerDeleted.
 func (s *AWSCloud) EnsureTCPLoadBalancerDeleted(name, region string) error {
+	if region != s.region {
+		return fmt.Errorf("requested load balancer region '%s' does not match cluster region '%s'", region, s.region)
+	}
+
 	lb, err := s.describeLoadBalancer(name)
 	if err != nil {
 		return err
@@ -1979,6 +1991,10 @@ func (s *AWSCloud) EnsureTCPLoadBalancerDeleted(name, region string) error {
 
 // UpdateTCPLoadBalancer implements TCPLoadBalancer.UpdateTCPLoadBalancer
 func (s *AWSCloud) UpdateTCPLoadBalancer(name, region string, hosts []string) error {
+	if region != s.region {
+		return fmt.Errorf("requested load balancer region '%s' does not match cluster region '%s'", region, s.region)
+	}
+
 	instances, err := s.getInstancesByNodeNames(hosts)
 	if err != nil {
 		return err
diff --git a/pkg/cloudprovider/providers/aws/aws_test.go b/pkg/cloudprovider/providers/aws/aws_test.go
index 07171a11827..67fa86de33f 100644
--- a/pkg/cloudprovider/providers/aws/aws_test.go
+++ b/pkg/cloudprovider/providers/aws/aws_test.go
@@ -17,6 +17,7 @@ limitations under the License.
 package aws_cloud
 
 import (
+	"fmt"
 	"io"
 	"reflect"
 	"strings"
@@ -664,3 +665,35 @@ func TestFindVPCID(t *testing.T) {
 		t.Errorf("Unexpected vpcID: %s", vpcID)
 	}
 }
+
+func TestLoadBalancerMatchesClusterRegion(t *testing.T) {
+	awsServices := NewFakeAWSServices()
+	c, err := newAWSCloud(strings.NewReader("[global]"), awsServices)
+	if err != nil {
+		t.Errorf("Error building aws cloud: %v", err)
+		return
+	}
+
+	badELBRegion := "bad-elb-region"
+	errorMessage := fmt.Sprintf("requested load balancer region '%s' does not match cluster region '%s'", badELBRegion, c.region)
+
+	_, _, err = c.GetTCPLoadBalancer("elb-name", badELBRegion)
+	if err == nil || err.Error() != errorMessage {
+		t.Errorf("Expected GetTCPLoadBalancer region mismatch error.")
+	}
+
+	_, err = c.EnsureTCPLoadBalancer("elb-name", badELBRegion, nil, nil, nil, api.ServiceAffinityNone)
+	if err == nil || err.Error() != errorMessage {
+		t.Errorf("Expected EnsureTCPLoadBalancer region mismatch error.")
+	}
+
+	err = c.EnsureTCPLoadBalancerDeleted("elb-name", badELBRegion)
+	if err == nil || err.Error() != errorMessage {
+		t.Errorf("Expected EnsureTCPLoadBalancerDeleted region mismatch error.")
+	}
+
+	err = c.UpdateTCPLoadBalancer("elb-name", badELBRegion, nil)
+	if err == nil || err.Error() != errorMessage {
+		t.Errorf("Expected UpdateTCPLoadBalancer region mismatch error.")
+	}
+}