Family name Gjonaj (Gjonaj 
) , across the world, is quite a rare cognomen. The family name Gjonaj is habitual in Southern Europe, particularly Albania, where it is quite a common surname, Montenegro, and Greece, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Albania, the United States, and Greece.
| VARIANT | COUNTRY |
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| Gjonaj | Afghanistan, Greece, Italy, United States, Albania |
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mark gjonaj American politician in New York (born 1968), US (b. 1968) |
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etilda gjonaj Albanian politician, AL (b. 1981) |
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| kujtim gjonaj Albanian filmmaker, AL (b. 1946) |
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| adriana gjonaj member of the Assembly of the Republic of Albania, AL (b. 1954) |
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| algert gjonaj Albanian basketball player (1987-), AL (b. 1987) |
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| salvador gjonaj Albanian footballer, AL (b. 1992) |
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