Cognomen Fēlīx (Felix 
, Félix , Feliks 
) , around the globe, is a prevalent family name. The cognomen Fēlīx is habitual in Latin America and the Caribbean, particularly Saint Lucia, where it is a common surname, Grenada, and Nicaragua (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Mexico, Nigeria, and Brazil. Also, Fēlīx is the forename as well as the last name.