All over the world, Petrasko (Petrasko 
) is an extremely rare unknown gender forename. Much more frequently, Petrasko is the last name as well as the forename.
Ms, Karen, Korah, Peter, Rosie, David, Lubos, Jaime, Jason, Joyce, Jozef, Jerry, Julie, Tammy, Theda, Tomas, Nancy, Holly, Marian, Sandra, Bryan, Samuel, Brian, Barry, Sam, Rex, Geo, Mary, Mike, Brad, Paul, Rose, Ryan, Lisa, Lynn, Heni, Maria, Marie, Maris, Sandy, Allan, Aaron, Cheri, Britt, and Sharon