Family name เกษษา (Ketsa 
, เกษษา ) , in all the world, is a rare surname. The cognomen เกษษา is characteristic of Thailand, where it is a rare surname, Canada, and New Zealand, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Thailand, Canada, and the United States. Much less frequently, เกษษา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ketsa | South Africa, Thailand, United States, Canada, Brazil |
| เกษษา | Thailand |