Cognomen 蔡森 (Chasen 
, 蔡森 
, Chaisson 
) , in the entire world, is quite a rare last name. The surname 蔡森 is habitual in Canada, where it is quite a rare surname, New Zealand, and the United States. Much less frequently, 蔡森 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chasen | Thailand, United States, India, Canada, New Zealand |
| 蔡森 | China |
| Chaisson | Australia, United States, India, Canada, New Zealand |