Globally, Caher (Caher 
) is a very rare principally masculine, but very seldom female forename. The first name Caher is characteristic of Southern Asia, particularly India, where it is an extremely rare boy's name. Likewise, Caher is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Caher | Spain, United States, Lithuania, Ireland, India |