Cognomen Kostyal (Kostyal 
) , across the world, is quite a rare family name. The surname Kostyal is habitual in Hungary, where it is quite a rare surname, Slovakia, and Sweden, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Hungary, Slovakia, and the United States.
Mr, Louis, Loiue, James, Julie, Telma, Elsie, Frank, Wayne, Michal, Linda, Alyona, Andrew, Angela, Carole, Robert, Daniel, Donald, George, Lauren, Laszlo, Andrea, Larry, David, Devin, Ms, Ann, Kim, Ray, Mary, Spaz, Adam, Carl, Rene, Rita, Lisa, John, Joey, Jeff, Marie, Sarah, Angie, Adela, Chris, Corey, Karen, Joseph, and Taylor