Worldwide, Кайна (Kaina 
, Kayna 
, Кайна 
) is quite a rare unisex first name. The given name Кайна is habitual in Latin America and the Caribbean, particularly the Dominican Republic, where it is quite a rare female name, Panama, and Brazil, where it is a rare largely masculine, but seldom female name. In absolute terms, it is commonest in India, Brazil, and France. Also, Кайна is the last name as well as the forename.