diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/NamespaceExistException.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/NamespaceExistException.java
new file mode 100644
index 00000000000..a0a08233223
--- /dev/null
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/NamespaceExistException.java
@@ -0,0 +1,39 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.hadoop.hbase;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+
+/**
+ * Thrown when a namespace exists but should not
+ */
+@InterfaceAudience.Public
+@InterfaceStability.Stable
+public class NamespaceExistException extends DoNotRetryIOException {
+
+  private static final long serialVersionUID = -1582357514338825412L;
+
+  public NamespaceExistException() {
+  }
+
+  public NamespaceExistException(String namespace) {
+    super(namespace);
+  }
+}
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/NamespaceNotFoundException.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/NamespaceNotFoundException.java
new file mode 100644
index 00000000000..f4f5dcc880b
--- /dev/null
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/NamespaceNotFoundException.java
@@ -0,0 +1,39 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.hadoop.hbase;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+
+/**
+ * Thrown when a namespace can not be located
+ */
+@InterfaceAudience.Public
+@InterfaceStability.Stable
+public class NamespaceNotFoundException extends DoNotRetryIOException {
+
+  private static final long serialVersionUID = -6673607347330260324L;
+
+  public NamespaceNotFoundException() {
+  }
+
+  public NamespaceNotFoundException(String namespace) {
+    super(namespace);
+  }
+}