Family name Tabaj (Tabaj 
) , all around the world, is a rare last name. The cognomen Tabaj is habitual in Slovakia, where it is a rare surname, Uruguay, and Italy, where it is a very rare surname. Not in comparison with a country's population, it is commonest in the United States, Slovakia, and Italy. Also, Tabaj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tabaj | Italy, India, United States, Poland, Slovakia |
| andrej tabaj Slovene priest, IT (b. 1862) |
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| blaž tabaj Slovene gendarme in Austria-Hungary (1870-1928), IT (b. 1870) |
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| ivan tabaj IT (b. 1879) |
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| aleksandra tabaj SI |
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