Silk moth may refer to
Moths that produce silk in their larval stage, including many Saturniidae, Bombycidae, and Apatelodidae moths The moth superfamily Bombycoidea, in contrast to other silk-producing moth groups The moth family Bombycidae, in contrast to other silk-producing moth families The species Bombyx mori in particular, the domesticated species used in commercial production of silk
See also Saturniidae, a family of moths including emperor moths, royal moths, and giant/wild silk moths Apatelodidae, a family of American silkworm moths