Surname 兰哲 (兰哲 
) , in the entire world, is a very rare last name. The family name 兰哲 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 兰哲 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 兰哲 | China |