Family name Megain (Megain 
) , worldwide, is a very rare cognomen. The last name Megain is habitual in France, where it is a very rare surname, Mexico, where it is an extremely rare surname, and India. More frequently, Megain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Megain | Mexico, Spain, United States, India, France |