Family name Caseo (Caseo 
) , all over the world, is a very rare last name. The family name Caseo is habitual in Philippines, where it is a very rare surname, Nicaragua, and Argentina, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Philippines, the United States, and Argentina. Very seldom, Caseo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Caseo | Mexico, United States, Nicaragua, Philippines, Argentina |