Teredo may refer to:
- Teredo (bivalve), a genus of shipworms that bores holes in the wood of ships
- Teredo wood, a form of fossilized wood showing marks of shipworm damage
- Coleophora teredo, a moth of family Coleophoridae
- Teredo tunneling, a protocol in computer communications for transmission of IPv6 datagrams
- HMS Teredo (P338), a British submarine
See also
- Teredolites