Family name Costra (Costra 
) , throughout the world, is a very rare last name. The cognomen Costra is characteristic of Algeria, where it is a rare surname, Venezuela, where it is an extremely rare surname, and Brazil. Measured by absolute frequency, it most frequently occurs in Algeria, Brazil, and the United States. Much less frequently, Costra is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Costra | South Africa, Algeria, United States, Brazil, Venezuela |