Family name Amavasi (Amavasi 
) , in all the world, is a rare last name. The last name Amavasi is habitual in Malaysia, where it is a rare surname, India, where it is an extremely rare surname, and the United States. Likewise, Amavasi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amavasi | United States, Malaysia, India, Thailand |