Cognomen Boyca (Boyca 
) , in all the world, is a very rare last name. The surname Boyca is characteristic of Algeria, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and South Africa. Measured by absolute frequency, it is commonest in Algeria, South Africa, and the United Kingdom. Very seldom, Boyca is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Boyca | Peru, South Africa, Mexico, Turkey, Algeria |