Ateralphus is a genus of beetles in the family Cerambycidae, containing the following species:
Ateralphus dejeani (Lane, 1973)
Ateralphus javariensis (Lane, 1965)
Ateralphus lacteus Galileo & Martins, 2006
Ateralphus senilis (Bates, 1862)
Ateralphus subsellatus (White, 1855)
Ateralphus variegatus (Mendes, 1938)