Cognomen Incia (Incia 
) , around the world, is a very rare last name. The surname Incia is characteristic of Latin America and the Caribbean, particularly Honduras, where it is a rare surname, Nicaragua, where it is a very rare surname, and Argentina, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Latin America and the Caribbean, particularly Honduras, Mexico, and Nicaragua. Also, Incia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Incia | Philippines, Brazil, United States, India, Honduras |