Family name Costo (Costo 
, Costum 
, Costus ) , all over the world, is quite a rare surname. The last name Costo is characteristic of Philippines, where it is a rare surname, Colombia, and Morocco. Very seldom, Costo is the forename as well as the last name.
| tommaso costo IT (b. 1560) |
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| rupert costo Native American author, publisher, philanthropist, engineer, rancher, US (b. 1906) |
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| tim costo American baseball player, US (b. 1969) |
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| rocio costo researcher |
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