Family name Garbaj (Garbaj 
) , across the world, is a very rare last name. The cognomen Garbaj is habitual in Brazil, where it is an extremely rare surname, and the United States.
| zbigniew garbaj Polish mathematician, PL (b. 1928) |
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| wacław garbaj Polish politician (1946-2011), PL (b. 1946) |
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