Surname St Claire (St Claire 
) , worldwide, is a rare family name. The family name St Claire is characteristic of Guyana, where it is a rare surname, Australia, and the United States, where it is a very rare surname. In absolute terms, the name is most common in the United States, Canada, and Australia. Very seldom, St Claire is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| St Claire | Australia, Canada, France, United States, United Kingdom |