Family name St Aubin (St Aubin 
) , throughout the world, is a rare cognomen. The surname St Aubin is habitual in Canada, where it is a rare surname, the United States, and New Zealand, where it is a very rare surname. Measured by absolute frequency, the name is most common in the United States, Canada, and France.
| VARIANT | COUNTRY |
|---|---|
| St Aubin | Canada, France, New Zealand, United States, Venezuela |