Surname Gekka (Gekka 
) , around the world, is quite a rare last name. The last name Gekka is habitual in Japan, where it is quite a rare surname, and Bulgaria, where it is a rare surname. Much less frequently, Gekka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gekka | Philippines, India, Japan, Bulgaria, United States |