Last name Sivacek (Sivacek 
) , all around the world, is a rare family name. The cognomen Sivacek is habitual in Slovakia, where it is quite a rare surname, Czechia, where it is a rare surname, and the United States, where it is a very rare surname.
Mr, Arthur, Cheryl, Connor, Claire, Rhonda, Darcie, Taylor, Edward, Marilyn, Matthew, Melissa, Melinda, Michael, Suzanna, Beverly, Justina, Timothy, Emilija, Miroslav, Sheila, Sherri, Frank, Tracy, Tim, Mary, Miro, Mike, Paul, Gary, Jane, John, Judy, Kristine, Emil, Slavo, Clara, Karen, Katya, Peter, Phala, Diane, James, Tomas, Marie, and Christine