The Reef may refer to:

Places

• The Reef or The Rand, alternative names for the Witwatersrand, a north-facing scarp in South Africa
• Great Barrier Reef or "The Reef", the planet's largest coral reef

Arts, entertainment, and media

• The Reef (novel), a 1912 novel by Edith Wharton
  • The Reef (1999 film), a film adaptation of the novel
• The Reef (2010 film), an Australian film
  • The Reef: Stalked, a 2022 sequel
• Shark Bait (2006 film), a 2006 South Korean-American animated film also released as The Reef
  • The Reef 2: High Tide, a 2012 sequel