In all the world, Calson (Calson 
) is a rare boy's forename. The given name Calson is characteristic of Sub-Saharan Africa, particularly Cameroon, where it is a rare masculine name, South Africa, and Tanzania. Also, Calson is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Calson | Tanzania, South Africa, Zimbabwe, Brazil, Cameroon |
| calson rugare chibaya badminton player, ZW (b. 1986) |
|