Family name غيرا (Guerra 
, Gera 
, Guira ) , worldwide, is a widespread last name. The cognomen غيرا is characteristic of Latin America and the Caribbean, particularly Panama, where it is a common surname, Guatemala, and Belize (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Latin America and the Caribbean, particularly Mexico, Brazil, and Colombia. Much less frequently, غيرا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guerra | Peru, Colombia, Brazil, Mexico, Guatemala |
| Gera, Guira | Colombia, Venezuela, Brazil, United States, Mexico |
De La Guerra, Gerra, Ghyra, and Гуэрра