In the entire world, Paczak (Paczak 
) is an extremely rare unknown gender first name. Much more frequently, Paczak is the last name as well as the forename.
Mary, Andrew, Catina, Robert, Daniel, Goldie, Lauren, Maureen, Michael, Holly, Bradley, Gregory, Jeffrey, Terence, William, Benjamin, Kathleen, Patricia, Lorraine, Kathryn, Erica, Nancy, Jamie, Mark, Myla, Beth, Brad, Lita, John, Tina, Sarah, Susan, Alvin, April, Aaron, Chris, Brian, Katie, Kelly, David, Lindy, Janet, Jennifer, and Christopher