Gomphus is a genus of cantharelloid fungi in the family Gomphaceae. Once presumed to be related to chanterelles, molecular study has shown them to be allied with stinkhorns and fairy clubs. The type species of the genus is the pig's ear (G. clavatus). Christiaan Hendrik Persoon named the genus in 1797, but did not assign any species to it at the time. The generic name is derived from the Greek 'γομφος' gomphos meaning 'plug' or 'large wedge-shaped nail'.