Seal Seal Signature Seal or SEAL may refer to:

Seal (device), a device used to produce an official Stamp as a symbol of Authority, or the impression left by a seal in Sealing wax, clay, etc. (Origin: Latin sigillum = "small symbol", a Diminutive of signum)
Seal (mechanical), a device to contain pressure, or exclude contamination from an enclosure: derived from the previous in its role to fasten an official Document shut.
Pinniped, a large marine Mammal (origin: Anglo-Saxon seolh).
Seal (musician), a British soul singer, who has released three eponymous albums: (Seal (1991 album), Seal II (1994 album), Human Beings (1998), Seal IV(2003 album) and Seal Best of Album.
Seal, Kent, a village in Kent, England (origin: probably Anglo-Saxon sēale = "Copse of Sallow-trees").
U.S. Navy SEALs, Special forces of the United States Navy (origin: acronym from "SEa, Air, Land").
Semantics-directed Environment Adaptation Language), a Computer Programming language.
SEAL (cipher), a cryptographic cipher.
HMS Seal (N37), a Submarine of the Royal Navy.
'The Original Nintendo Seal Of No Quality', a running joke in Nintendo Offical Magazine UK