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Surname Gajo (Galla
, Gajo
, Gayo
) , in all the world, is a common last name. The cognomen Gajo is habitual in Philippines, where it is quite a common surname, Hungary, where it is quite a rare surname, and Paraguay. Measured by absolute frequency, it is the most numerous in India, Philippines, and Indonesia. Very seldom, Gajo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Galla | Philippines, India, Poland, Indonesia, Democratic Republic of the Congo |
| Gajo | Philippines, Poland, India, Indonesia, United States |
| Gayo | Philippines, India, Indonesia, United States, Democratic Republic of the Congo |
| Гайо | Armenia, Russia, Ukraine |