Family name Thotham (Thotham 
) , in the entire world, is a very rare cognomen. The family name Thotham is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, Thotham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thotham | United States, India, Thailand |