The genus name Ptychodes may refer to:
- ?Ptychodes F.Weber, 1814 (Plantae, Bryophyta)
- Ptychodes Audinet-Serville, 1835 (Animalia, Insecta, Cerambycidae)
- ?Ptychodes Fischer de Waldheim, 1848 (Animalia, Mollusca)
- ?Ptychodes Diesing, 1863 (Animalia, Nemertea)
- Ptychodes Buckton, 1881 = Panaphis Kirkaldy, 1904 (Animalia, Insecta, Aphididae)