Cognomen ไชยกาศ (Chaiyat 
, ไชยกาศ ) , all over the world, is a rare last name. The surname ไชยกาศ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ไชยกาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chaiyat | India, Thailand |
| ไชยกาศ | Thailand |