diff --git a/cli/src/main/java/org/onosproject/cli/net/RegionUpdateCommand.java b/cli/src/main/java/org/onosproject/cli/net/RegionUpdateCommand.java
new file mode 100644
index 0000000..f395491
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/net/RegionUpdateCommand.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.cli.net;
+
+import com.google.common.collect.BiMap;
+import com.google.common.collect.HashBiMap;
+import com.google.common.collect.Lists;
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.net.region.Region;
+import org.onosproject.net.region.RegionAdminService;
+import org.onosproject.net.region.RegionId;
+import org.onosproject.net.region.RegionService;
+
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * Update an existing region.
+ */
+@Command(scope = "onos", name = "region-update",
+        description = "Updates an existing region.")
+public class RegionUpdateCommand extends AbstractShellCommand {
+
+    private static final BiMap<String, Region.Type> REGION_TYPE_MAP = HashBiMap.create();
+
+    static {
+        for (Region.Type t : Region.Type.values()) {
+            REGION_TYPE_MAP.put(t.name(), t);
+        }
+    }
+
+    @Argument(index = 0, name = "id", description = "Region ID",
+            required = true, multiValued = false)
+    String id = null;
+
+    @Argument(index = 1, name = "name", description = "Region Name",
+            required = true, multiValued = false)
+    String name = null;
+
+    @Argument(index = 2, name = "type", description = "Region Type",
+            required = true, multiValued = false)
+    String type = null;
+
+    @Argument(index = 3, name = "masters", description = "Region Master",
+            required = true, multiValued = true)
+    List<String> masters = null;
+
+    @Override
+    protected void execute() {
+        RegionService regionService = get(RegionService.class);
+        RegionAdminService regionAdminService = get(RegionAdminService.class);
+        RegionId regionId = RegionId.regionId(id);
+
+        if (regionService.getRegion(regionId) == null) {
+            print("The region with id %s does not exist.", regionId);
+            return;
+        }
+
+        Set<NodeId> nodeIds =
+                masters.stream().map(s -> NodeId.nodeId(s)).collect(Collectors.toSet());
+        List<Set<NodeId>> masters = Lists.newArrayList();
+        masters.add(nodeIds);
+        regionAdminService.updateRegion(regionId, name, REGION_TYPE_MAP.get(type), masters);
+        print("Region with id %s is successfully updated.", regionId);
+    }
+}