Surname Rissu (Rissu 
) , in all the world, is a very rare family name. The cognomen Rissu is habitual in Tanzania, where it is a very rare surname, Thailand, where it is an extremely rare surname, and Mexico. Not in comparison with a country's population, the name is most common in Tanzania, India, and Mexico. Also, Rissu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rissu | Mexico, India, Thailand, Tanzania |