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Family name St Louis (St Louis
) , around the globe, is quite a rare surname. The cognomen St Louis is habitual in Canada, where it is quite a rare surname, Trinidad and Tobago, and Mauritius. In absolute terms, it is the most numerous in the United States, Canada, and the Dominican Republic.
| VARIANT | COUNTRY |
|---|---|
| St Louis | Canada, Dominican Republic, Haiti, United States, United Kingdom |