In the entire world, Franckx (Franckx 
) is an extremely rare unknown gender first name. Much more prevalently, Franckx is the last name as well as the forename.
Mr, Inge, Ivan, Yani, Marie, Simon, Sofie, Steve, Stijn, Amber, Carla, Cathy, Cleia, Cindy, Bjorn, Kenzo, Kevin, Kyara, Patty, Pirre, Dylan, Glenn, Hugo, Erik, Eric, Elke, Ms, Guy, Luc, Luk, Jan, Eva, Stan, Andy, Carl, Koen, Lotte, Kurt, Raya, Dany, Dave, Greg, Gino, Jens, Jean, Jeff, Tine, Nico, Paul, and Lucia