Family name Mccollam (Mccollam 
) , across the world, is a rare last name. The family name Mccollam is characteristic of Bermuda, where it is quite a rare surname, Ireland, where it is a rare surname, and the United States. In absolute terms, it is commonest in the United States, the United Kingdom, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Mccollam | Australia, Canada, Ireland, United Kingdom, United States |