Cognomen Milau (Milau 
) , in the entire world, is a rare surname. The surname Milau is habitual in Cayman Islands, where it is quite a rare surname, Malaysia, where it is a rare surname, and Canada, where it is a very rare surname. Measured by absolute frequency, it is commonest in India, the United States, and Malaysia. More frequently, Milau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Milau | United States, Nigeria, Malaysia, Germany, India |