Worldwide, Kreinz (Kreinz 
) is an extremely rare unknown gender forename. Much more frequently, Kreinz is the last name as well as the forename.
Mr, Marcus, Mitzie, Steven, Austin, Bernie, Philip, Robert, Rudolf, Denise, Damian, George, Gilles, Gloria, Johann, Nadine, Harold, Oliver, Walter, Marilyn, Michael, Anthony, Martin, Heidi, Tammy, Jorge, Ms, Lea, Mike, Dean, Lars, Juan, Tina, Nina, Yara, Mario, Candace, Marci, Andre, Anita, Carla, Brian, David, Drake, Grant, Linda, Logan, Luana, Mandy, and Kathryn