Cognomen Autu (Autu 
) , worldwide, is a rare surname. The last name Autu is habitual in Tanzania, where it is a rare surname, Romania, and New Zealand, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in India, Tanzania, and Romania. Also, Autu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Autu | Tanzania, Malaysia, India, Nigeria, Romania |