Throughout the world, De Oca (De Oca 
) is a very rare epicene forename. The given name De Oca is characteristic of Northern America, particularly the United States, where it is an extremely rare unisex name. Predominantly, De Oca is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| De Oca | Philippines, Mexico, Argentina, Dominican Republic, United States |
De, Rene, Rita, Ruth, Lili, Lori, Luis, Jose, Jona, Joel, Jean, Jehu, Juan, Nico, Nilo, Neil, Elba, Eric, Erik, Emma, Hope, Ivan, Rosa, Yoel, Raul, Katy, Lu, May, Ali, Ana, Jay, Joe, Fer, Ivy, Mary, Malu, Sara, Alex, Alec, Alan, Aldo, Aldi, Andy, Abel, Amor, Beth, Boni, Kike, and Maria