Throughout the world, ออมสิน (ออมสิน 
, Omsin 
, Aomsin 
) is quite a rare epicene first name. The forename ออมสิน is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare unisex name. Likewise, ออมสิน is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| ออมสิน | Thailand |
| Omsin | Malaysia, United States, Thailand |
| Aomsin | New Zealand, Thailand |
| Ormsin | United States, Thailand |
Aumsin, Mardsaving, Oomsin, Oonsombatt, Sombaht, and Somsaban
| ออมสิน ชีวะพฤกษ์ politician, TH (b. 1951) |
|