Family name Petró (Petró 
) , all around the world, is a rare surname. The cognomen Petró is characteristic of Hungary, where it is quite a rare surname, Italy, where it is an extremely rare surname, and Germany. Not in comparison with a country's population, it most frequently occurs in Hungary, Germany, and Brazil. Very seldom, Petró is the forename as well as the last name.
| augusto petró Catholic bishop (1918-2008), BR (b. 1918) |
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| petró jános (1937-2022) composer, conductor, HU (b. 1937) |
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| petró orsolya Hungarian basketball player (1940-1988), HU (b. 1940) |
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| renato petró Swiss-Italian floorball player (b. 1979) |
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| petró balázs Hungarian association football player, HU (b. 1997) |
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