All around the world, Tewichayawanit (Tewichayawanit 
) is an extremely rare unknown gender forename. Much more frequently, Tewichayawanit is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tewichayawanit | Thailand |
Kitrat, Teechapat, Ploynapat, and Nootchanatch