Deep Blue Sea or The Deep Blue Sea may refer to:

• The Deep Blue Sea (play), a 1952 stage play by Terence Rattigan
  • The Deep Blue Sea (1954 TV play), a 1954 British television play based on the Rattigan play
  • The Deep Blue Sea (1955 film), a 1955 British drama film based on the Rattigan play
  • The Deep Blue Sea (2011 film), a 2011 British drama film based on the Rattigan play
• "Deep Blue Sea", a 1957 Country and Western hit for Jimmy Dean with lyrics by Martin Seligson
• Deep Blue Sea (1999 film), a 1999 American science fiction horror film
  • Deep Blue Sea (soundtrack), soundtrack to the film
  • Deep Blue Sea 2 (2018 film), a stand-alone sequel to the 1999 film
• Deep Blue Sea, a 2004 album by Davy Spillane
• Deep Blue Sea (hat), an Australian hat

• Between the Devil and the Deep Blue Sea (disambiguation)
• Deep Blue (disambiguation)
• Sea (disambiguation)
• Blue Sea
• Deep sea