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.

• Saturniidae, a family of moths including emperor moths, royal moths, and giant/wild silk moths
• Apatelodidae, a family of American silkworm moths