* The most common way is "Ellen" (pronounced "eh-lehn"). This is the direct translation of the English name and is fairly easy for French speakers to understand.
* If you want to emphasize the "e" sound at the beginning, you could say "Èlène" (pronounced "eh-lehn"). This pronunciation is closer to the French name "Hélène," which has a similar meaning to Ellen.
* You could also use the French name "Eliane" (pronounced "eh-lee-ahn"). This name is less common but has a similar sound and meaning to Ellen.
Ultimately, the best way to say your name in French is whichever way you feel most comfortable with.