Fleer is a surname. Notable people with the surname include:

Craig Fleer, Australian rules football umpire Frank H. Fleer (1860–1921), American confectioner who is thought to have developed the first bubble gum, founder of Fleer Corporation Harry Fleer (1916–1994), American actor John Fleer, American chef, cookbook author, and restauranteur Marilyn Fleer, Australian professor of early childhood education and development

See also

Fleer, American chewing gum manufacturer Scheutjens–Fleer theory, a lattice-based self-consistent field theory that is the basis for many computational analyses of polymer adsorption