Surname เกตุฤทธิ์ (เกตุฤทธิ์ 
, Ketrit ) , in all the world, is a very rare cognomen. The cognomen เกตุฤทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, เกตุฤทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เกตุฤทธิ์, Ketrit | Thailand |