Surname Sitau (Sitau 
) , throughout the world, is a very rare family name. The cognomen Sitau is habitual in Malaysia, where it is a very rare surname, South Africa, and Canada, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in South Africa, Malaysia, and India. Much more prevalently, Sitau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sitau | South Africa, India, France, Malaysia, Tanzania |