Surname Opachak (Opachak 
) , in the world, is a very rare last name. The cognomen Opachak is characteristic of Colombia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Opachak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Opachak | Venezuela, Colombia, United States |