Seaweed may refer to:
Seaweed, a pet summoning item obtained from Ivy Chests in Jungle Shrines, and Jungle and Bramble Crates.
Seaweed, a junk item obtained from fishing.
- Seaweeds
, the ambient objects growing underwater on sand at the Underground, or Ocean Caves.
It may also refer to:
Lime Kelp, the dye material with similar appearance.