Family name Posteucă (Posteucă 
) , worldwide, is a very rare cognomen. The family name Posteucă is habitual in Eastern Europe, particularly Romania, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Posteucă | Romania |
| vasile posteucă Romanian writer, RO (b. 1912) |
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| adina posteucă badminton player, RO (b. 1971) |
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| florin eugen posteucă badminton player, RO (b. 1977) |
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