Seahorse (disambiguation)
- Battle of Mount Austen, the Galloping Horse, and the Sea Horse
- F. F. E. Yeo-Thomas
- HMS Seahorse
- Hippocampus (mythology)
- Hippopotamus
- Hudson's Bay Company vessels
- King George V Seahorses
- Royal Manitoba Theatre Centre production history
- Sea Horse (restaurant)
- Sea Horse Baian
- Sea Horses (film)
- Sea Horses (novel)
- Sea-Horse (folktale)
- Seahorse (software)
- Sikorsky H-34
- Teletubbies
- The Seahorses
- USS Seahorse
- Walrus
- Water horse