Worldwide, Casmer (Casmer 
) is a rare gender-neutral given name. The forename Casmer is habitual in Philippines, where it is a rare unisex name, and the United States, where it is an extremely rare male name. Much less frequently, Casmer is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Casmer | United States, Philippines, Nigeria, Canada, Chile |
|
casmer p. ogonowski American politician, US (b. 1923) |
|
| casmer j. sikorski (b. 1908) |
|