Family name Stmartin (Stmartin 
) , around the world, is a rare surname. The family name Stmartin is habitual in the United States, where it is a rare surname, New Zealand, and Canada. Measured by absolute frequency, the name is most common in the United States, Canada, and France.
| VARIANT | COUNTRY |
|---|---|
| Stmartin | United Kingdom, Canada, France, New Zealand, United States |