Throughout the world, Kleiser (Kleiser 
) is a rare primarily boy's, but very infrequently feminine forename. The given name Kleiser is habitual in Latin America and the Caribbean, particularly Cuba, where it is a rare masculine name, Peru, where it is a very rare boy's name, and Brazil. More prevalently, Kleiser is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kleiser | Germany, France, United Kingdom, United States, Cuba |
Kleiser is also a name for the fictitious and mythical characters: .
| lorentz kleiser American painter and textile designer, 1879-1963, US (b. 1879) |
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