All over the world, วันชา (Vancha 
, Daycha 
, วันชา ) is quite a rare epicene forename. The first name วันชา is habitual in the Democratic Republic of the Congo, where it is a rare female name, Thailand, where it is a very rare boy's name, and India, where it is a very rare unisex name. More frequently, วันชา is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Vancha | Canada, United Arab Emirates, India, United States, Czechia |
| Daycha | Democratic Republic of the Congo, Philippines, India, Thailand, United States |
| วันชา | Thailand |