Cognomen วิหค (Vihaga 
, วิหค 
, Wihok 
) , around the world, is a rare surname. The family name วิหค is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. More frequently, วิหค is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vihaga | India, Sri Lanka, Qatar, Kuwait |
| วิหค | Thailand |
| Wihok | United States, Thailand |