Family name St Germain (St Germain 
) , worldwide, is quite a rare surname. The surname St Germain is characteristic of Canada, where it is quite a rare surname, the United States, where it is a rare surname, and New Zealand. Measured by absolute frequency, the name is most common in the United States, Canada, and France.
| VARIANT | COUNTRY |
|---|---|
| St Germain | Canada, France, Dominican Republic, New Zealand, United States |