All around the world, Gaessler (Gaessler 
) is an extremely rare unknown gender first name. Much more frequently, Gaessler is the last name as well as the forename.
Mr, Andre, Carol, Cindy, Brian, Patti, Robin, Denis, Devon, Linda, Louis, James, Jenna, Julie, Tommy, Nadia, Ninon, Ernst, Fanny, Yanis, Marina, Marine, Sarah, Marcel, Marin, Yann, Ms, Ray, Guy, Mary, Anne, Bert, Brad, Bret, Rosa, Rene, Gary, Gart, Grit, Lisa, Lynn, Jane, John, Jean, Theo, Niko, Eric, Marie, and Maxime