Family name Certa (Certa 
) , worldwide, is quite a rare cognomen. The family name Certa is characteristic of Southern Europe, particularly Croatia, where it is quite a rare surname, Portugal, where it is a rare surname, and Italy. Measured by absolute frequency, it most frequently occurs in the United States, Italy, and Germany. Very seldom, Certa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Certa | Germany, Italy, United States, Poland, France |
|
hugues de la certa French monk, FR (b. 1071) |
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| joe certa US (b. 1919) |
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| rolando certa Italian poet, politician, literary critic and essayist, IT (b. 1931) |
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maciej certa Polish sportsperson, PL (b. 1991) |
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| luigi certa Roman Catholic bishop |
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| ludovico certa Roman Catholic bishop |
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