Last name เทิ่ม (Thoem 
, เทิ่ม) , in the world, is a very rare cognomen. The family name เทิ่ม is characteristic of Denmark, where it is a rare surname, New Zealand, where it is a very rare surname, and Cambodia. In absolute terms, it is the most numerous in Denmark, the United States, and Canada. Likewise, เทิ่ม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thoem | Malaysia, Thailand, Cambodia, United States, Denmark |