All over the world, Louissaint (Louissaint 
) is a rare boy's first name. The first name Louissaint is habitual in Haiti, where it is quite a rare boy's name, the Dominican Republic, where it is a rare masculine name, and France, where it is a very rare epicene name. In absolute terms, this name is the most popular in Haiti, the Dominican Republic, and the United States. More frequently, Louissaint is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Louissaint | Haiti, France, Dominican Republic, Brazil, United States |