Last name ซิท (Sit 
, ซิท 
, Siht 
) , all around the world, is a common cognomen. The last name ซิท is characteristic of Macao, where it is quite a common surname, Bermuda, and Hong Kong (explore the name in all countries). In absolute terms, it is the most numerous in India, Myanmar, and Hong Kong. Likewise, ซิท is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sit | China, Myanmar, India, Hong Kong, Taiwan |
| ซิท | Thailand |
| Siht | United States, Estonia, India, Ireland, France |