Cognomen Умтай (Умтай 
, Umtay 
) , around the globe, is an extremely rare last name. The cognomen Умтай is habitual in South-eastern Asia, particularly Philippines, where it is an extremely rare surname. More prevalently, Умтай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Умтай | Kazakhstan, Russia |
| Umtay | Philippines |