Seal

Seal commonly refers to:

Pinniped, a diverse group of semi-aquatic marine mammals, many of which are commonly called seals.
Seal (emblem), an emblem used as a means of authentication; both an impression in paper, wax, clay or other medium, and the device used
Seal (mechanical), a device which helps prevent leakage, contain pressure, or exclude contamination where two systems join
Seal (surname), an Indian surname of Hindu Bengalis and Rajputs.

Seal may also refer to:

Computers

Digital Signature And Electronic Authentication Law (SEAL), a bill that sought to update banking regulations in America
SEAL (cipher), a cryptographic algorithm
sealed, a keyword used in the programming languages Managed Extensions for C++ and C# to denote that this class cannot be inherited from

Seal (musician), English singer and songwriter, or any of his three self-titled albums:
- Seal (1991 album)
- Seal (1994 album), sometimes referred to as Seal II
- Seal (2003 album), sometimes referred to as Seal IV (following his third album Human Being)
Seal Online, a massively multiplayer online role-playing game

United States Navy SEALs, the principal special operations force of the U.S. Navy
Royal Thai Navy SEALs, Thai Navy special operations force modelled on the U.S. unit
'Naval Special Operations Group also known as the Philippine Navy SEALs
ROKN UDT/SEALs, a component of the Republic of Korea Navy Special Warfare Flotilla

Aditya Seal (born 1988), Indian actor
Barry Seal (1939–1986), American drug smuggler and DEA informant
Brajendra Nath Seal (1864–1938), Indian humanist philosopher and educator
David Seal (born 1972), Australian soccer player
Elizabeth Seal (born 1933), Italian actress
Frances Thurber Seal, American Christian Science practitioner and teacher
Jaynie Seal (born 1973), Australian television presenter
Jimmy Seal (born 1950), English footballer
Kevin Seal, MTV VJ in the late 1980s, the host of the pilot of Club MTV
Manuel Seal, Jr., American songwriter-producer
Mike Seal (born 1970), Assistant Conductor of the City of Birmingham Symphony Orchestra
Mike Seal (fighter) (born 1977), Mexican mixed martial artist
Mutty Lall Seal (1792–1854), Bengali Indian businessman and philanthropist
Paul Seal (born 1952), former American football tight end in the National Football League
Seal (musician) (born 1963), British soul and R&B singer-songwriter
Sudhangshu Seal (born 1945), member of the 14th Lok Sabha of India
Tong Seal (born 1346), legendary Burmese ruler

Seal of the prophets, a title given to the Islamic prophet, Muhammad
Seal script, ancient Chinese calligraphy
Security seal, a device used to show whether a locking device has been opened
"Seal", a generic term for the surface treatment of sealed roads (and by extension, a term used for the roads themselves)
the black coat color of point cats