Throughout the world, 兰渚 (兰渚 
) is a very rare male forename. The forename 兰渚 is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Very seldom, 兰渚 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 兰渚 | China |