Worldwide, San Martin (San Martin 
) is a rare masculine forename. The first name San Martin is habitual in Latin America and the Caribbean, particularly Mexico, where it is a rare male name, Argentina, where it is a very rare masculine name, and Peru. Much more prevalently, San Martin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| San Martin | Spain, Mexico, Chile, Argentina, Peru |