Cognomen Mardicas (Mardicas 
) , in the entire world, is a very rare surname. The family name Mardicas is habitual in Philippines, where it is a very rare surname, New Zealand, and Australia. Measured by absolute frequency, it most frequently occurs in Philippines, Australia, and the United States. Much less frequently, Mardicas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mardicas | United States, Australia, Philippines, New Zealand |