Around the globe, Mateika (Mateika 
) is an extremely rare gender-neutral first name. Much more prevalently, Mateika is the last name as well as the forename.
Mr, Rokas, David, Diana, Laura, Linas, Lukas, Lynda, James, Jason, Robyn, Jorge, Emily, Ivone, Ignas, Wilma, Xenia, Mantas, Milton, Samuel, Sabina, Tomas, Steven, Randy, Peter, Ms, Sue, Mary, Mark, Mike, Rose, Dawn, Lori, John, Pedro, Joao, Olga, Shawn, Susan, Anita, Artas, Brian, Bruce, Billy, Kevin, Jeff, and Aivita