Seal may refer to any of the following:

• Pinniped, a diverse group of semi-aquatic marine mammals, many of which are commonly called seals, particularly:
  • Earless seal, also called "true seal"
  • Fur seal
  • Eared seal
• Seal (emblem), a device to impress an emblem, used as a means of authentication, on paper, wax, clay or another medium (the impression is also called a seal)
• Seal (mechanical), a device which helps prevent leakage, contain pressure, or exclude contamination where two systems join
• Security seals such as labels, tapes, bands, or ties affixed onto a container in order to prevent and detect tampering

• Seal (1991 album), by Seal
• Seal (1994 album), sometimes referred to as Seal II, by Seal
• Seal IV, a 2003 album by Seal
• Seal Online, a 2003 massively multiplayer online role-playing game

• Seal (contract law), a legal formality for contracts and other instruments
• Seal (East Asia), a stamp used in East Asia as a form of a signature
• Record sealing

• Fairey Seal, a 1930s British carrier-borne torpedo bomber aircraft
• HMS Seal, two Royal Navy ships and one submarine
• USS Seal, two American submarines
• Supermarine Seal II, the 1921 British flying boat

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

• Seal (musician) (born 1963), English singer and songwriter
• Seal (surname):
  • Aditya Seal (born 1988), Indian actor
  • Barbara Seal, Canadian former judge from Montreal, Quebec
  • 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, American television presenter and actor
  • Manuel Seal (born 1960), American songwriter-producer
  • Michael Seal (born 1970), British orchestral conductor and classical violinist
  • Mike Seal (fighter) (born 1977), Mexican mixed martial artist
  • Mutty Lall Seal (1792–1854), Indian Bengali businessman and philanthropist
  • Paul Seal (born 1952), American football tight end
  • Sudhangshu Seal (born 1945), Indian politician

• Seal, Kent, a village and civil parish in England
• Seal, Ohio, an unincorporated community
• Seal Beach, California, a city located in Orange County, USA
• Seal Cay, а island within the Bahamas
• Seal Harbour, Nova Scotia, a community in Guysborough County, Canada
• Seal Lake, a lake in Greenland

• "Seal", a generic term for the surface treatment of sealed roads (and by extension, a term used for the roads themselves)
• Seal brown
• Seal of the prophets, a title given to the Islamic prophet, Muhammad
• Seal script, ancient Chinese calligraphy
• BYD Seal, an electric sedan
• Select Entry Accelerated Learning, a program used in Victoria, Australia, in some secondary schools

• SEAL (disambiguation)
• Seale (disambiguation)
• Sealing (disambiguation)
• Seals (disambiguation)
• Seel (disambiguation)
• All pages with titles beginning with Seal
• All pages with titles containing Seal