Surname St-Amour (St-Amour 
) , around the world, is quite a rare cognomen. The family name St-Amour is habitual in Canada, where it is quite a rare surname, New Zealand, and Australia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Canada, New Zealand, and the United States. Parts of the name also exists independently as a first name Amour.
| VARIANT | COUNTRY |
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| St-Amour | Australia, Canada, New Zealand, United States, United Kingdom |
| martin st-amour Canadian ice hockey player, CA (b. 1970) |
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| emilie-claude st-amour maillé performing artist in Canada, CA |
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| pascal st-amour researcher (ORCID 0000-0002-1468-0313) |
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| vincent st-amour Ph.D. Northeastern University 2015 |
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| pénélope st-amour researcher |
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| isabelle st-amour researcher |
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| marthe st-amour Quebec singer and novelist |
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| ariane falardeau st-amour in the cinema industry |
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| line st-amour CA |
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