Cognomen เมธิยา (Medhiya 
, Methiya 
, เมธิยา ) , all around the world, is a rare last name. The surname เมธิยา is habitual in Myanmar, where it is a rare surname, and India, where it is a very rare surname. More prevalently, เมธิยา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Medhiya | Myanmar, Thailand, India |
| Methiya | Thailand, Philippines, India |
| เมธิยา | Thailand |