Around the world, Karolai (Karolai 
) is a very rare epicene forename. The forename Karolai is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare female name, and Brazil, where it is an extremely rare unisex name. Much less frequently, Karolai is the last name as well as the forename.
Cruz, Gallego, Herrera, Martines, Mendonca, Saldanha, Silveira, Castillo, Rosales, Calderon, Oliveira, Chavarria, Barcellos, Rodrigues, Guimaraes, Goncalves, Hernandez, Creolesi, Brandao, Batista, Almeida, Lima, Silva, Sodre, Costa, Borba, Perez, Neves, Santos, Suarez, Araujo, Castro, Conejo, Garcia, Toledo, Vargas, Inacio, Moreira, Friedrich, and Mejia Ortega