Last name Harcia (Harcia 
) , in the world, is a very rare cognomen. The last name Harcia is habitual in New Zealand, where it is a very rare surname, Philippines, and Spain. Measured by absolute frequency, it is the most numerous in Philippines, Spain, and the United States. More frequently, Harcia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Harcia | Spain, Philippines, Colombia, United States, Democratic Republic of the Congo |