All around the world, Ацо (Azzo 
, Atso 
, Ацо 
) is quite a rare predominantly masculine, but very seldom girly forename. The first name Ацо is characteristic of Algeria, where it is quite a rare masculine name, Libya, and Finland, where it is a rare masculine name. Measured by absolute frequency, the name is most common in Algeria, India, and Italy. Also, Ацо is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Azzo | Italy, Syria, Algeria, Egypt, United States |
| Atso | Estonia, Finland, Nigeria, United States, India |
| Ацо | Russia, Ukraine |
Ацо is also a name for the fictitious and mythical characters: Azzo d’Este , the operatic character in the opera Parisina (Donizetti).
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ацо шопов Macedonian poet (1923-1982), MK (b. 1923) |
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ацо караманов Macedonian poet, MK (b. 1927) |
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| ацо петровски politician, MK (b. 1901) |
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| ацо стефановски actor, MK (b. 1922) |
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| ацо јовановски actor (1930-2016), MK (b. 1930) |
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ацо јоновски Macedonian handball player, MK (b. 1980) |
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ацо стојков Macedonian association football player, MK (b. 1983) |
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| ацо богдановски - конга MK (b. 1960) |
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| ацо пејовић Serbian singer, RS (b. 1972) |
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| ацо регина BA (b. 1970) |
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