Surname Thamson (Thamson 
) , all around the world, is a rare last name. The last name Thamson is habitual in Tanzania, where it is a rare surname, Thailand, where it is a very rare surname, and Honduras. Not in comparison with a country's population, it is the most numerous in Tanzania, Indonesia, and Thailand. Also, Thamson is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thamson | Tanzania, Kenya, Thailand, India, Indonesia |