A sea serpent is a mythological sea creature either wholly or partly serpentine.

Sea Serpent or The Sea Serpent may refer to:

• Sea Serpent (clipper), 1850 clipper ship which sailed in the San Francisco and China trade
• Sea-Serpent, a steam yacht, formerly HMS Squirrel (1904)
• Sea Serpent (roller coaster), at Morey's Piers in Wildwood, New Jersey
• Sea Serpent (roller coaster element), a double-inversion element with vertical loop halves connected by half corkscrews
• Sea Serpent Cove, a cove in the South Sandwich Islands
• The Sea Serpent, 1901 adventure novel by Jules Verne
• The Sea Serpent (aka Hydra, the Sea Monster), a 1984 Spanish horror film directed by Amando de Ossorio
• Sea Serpent, a variant of the Gabriel (missile) developed by Israel's IAI and Thales
• Sea Serpent (ASW), a US Anti Submarine system.

• Hydrophiinae, or sea snakes
• Phycodurus and Phyllopteryx, genera of fish, also known as sea snakes or seadragons
• Hydrus, a Southern Hemisphere constellation, the 'lesser Water Snake', or sea snake
• Oarfish
• King of herrings
• Sea serpent roll, a roller coaster inversion related to the cobra roll
• Mare Anguis, or "Serpent Sea", a lunar mare on the near side of the Moon

This disambiguation page lists articles associated with the title Sea serpent.
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