In all the world, Casler (Casler 
) is an extremely rare dominantly male, but uncommonly girly forename. Much more frequently, Casler is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Casler | Canada, France, Israel, New Zealand, United States |
| burtis g. casler Ph.D. University of Wisconsin-Madison 1962 |
|