Surname Alenca (Alenca 
) , around the world, is a very rare last name. The surname Alenca is habitual in Brazil, where it is a very rare surname, Nicaragua, and China, where it is an extremely rare surname. Likewise, Alenca is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alenca | Brazil, China, Nicaragua, South Africa, Spain |