Family name ジェレナ (Gerena 
, ジェレナ) , throughout the world, is quite a common surname. The cognomen ジェレナ is habitual in Latin America and the Caribbean, particularly Puerto Rico, where it is quite a common surname, Bolivia, where it is quite a rare surname, and Colombia. In absolute terms, it is commonest in Colombia, the United States, and Puerto Rico. Very seldom, ジェレナ is the forename as well as the last name.