Cognomen ต๋อ (To 
, Stump 
, ต๋อ) , all around the world, is a widespread last name. The cognomen ต๋อ is characteristic of Hong Kong, where it is a common surname, Bermuda, and Cayman Islands, where it is quite a common surname (explore the name in all countries). In absolute terms, it is the most numerous in Indonesia, Hong Kong, and the United States. More frequently, ต๋อ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| To | Indonesia, Japan, Egypt, Hong Kong, United States |
| Stump | Myanmar, Canada, China, India, United States |