Family name De Roja (De Roja 
) , in the entire world, is a rare cognomen. The cognomen De Roja is habitual in Philippines, where it is a rare surname, Italy, where it is a very rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| De Roja | Philippines, Italy, Venezuela, Germany |
Rey, Alfredo, Annabel, Beverly, Rosalie, Rodolfo, Roberto, Gemalyn, Lourdes, Jenifer, Jemalyn, Eulogio, Violeta, William, Mary Joy, Milagros, Angelito, Abelardo, Carolina, Cristina, Crisanta, Roderick, Alberto, Mildred, Martina, Oliver, Joel, Nida, Elke, Alvin, Ariel, Aaron, Karen, Roger, David, Nelia, Regalado, Sandra, Analyn, Aurora, Carina, Baylon, Brenda, George, Leizel, Loreto, Lucena, Hannie, Albert, and Joemarie