Surname Delaven (Delaven 
) , throughout the world, is a very rare last name. The family name Delaven is habitual in Argentina, where it is a very rare surname, Philippines, and the United States, where it is an extremely rare surname. Very seldom, Delaven is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Delaven | United States, Philippines, Argentina |