Globally, Callam (Callam 
) is a rare predominantly boy's, but scarcely girly forename. The forename Callam is characteristic of the United Kingdom, where it is a rare male name, Australia, and India, where it is an extremely rare epicene name. Also, Callam is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Callam | Australia, Philippines, Jamaica, United Kingdom, United States |