Family name Ganusa (Ganusa 
) , around the world, is a very rare last name. The cognomen Ganusa is characteristic of Latvia, where it is a rare surname, Bulgaria, and Philippines, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Philippines, Latvia, and India. Very seldom, Ganusa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ganusa | Latvia, Bulgaria, United States, Philippines, India |