Last name 法森 (法森 
, Faison 
, Farson 
) , in all the world, is a common family name. The last name 法森 is habitual in Lebanon, where it is quite a rare surname, the United States, and Cameroon. Very seldom, 法森 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 法森 | China |
| Faison | Thailand, Cameroon, South Africa, United States, Democratic Republic of the Congo |
| Farson | Philippines, Canada, United States, Lebanon, Democratic Republic of the Congo |
| Fasen | Netherlands, China, South Africa, United States, Germany |