Globally, Geilin (Geilin 
) is a rare unisex given name. The given name Geilin is habitual in Latin America and the Caribbean, particularly the Dominican Republic, where it is a rare epicene name, Nicaragua, where it is a rare largely feminine, but seldom masculine name, and Costa Rica, where it is a rare principally girly, but very seldom masculine name. Much less frequently, Geilin is the last name as well as the forename.