TY or Ty may refer to:

• Ty (given name), includes a list of people with the given name or nickname
• Ty (surname), a list of people
• Zheng (surname), spelled Ty in the Philippines
• Ty (rapper) (1972–2020), Nigerian-British hip-hop artist
• Ty Dolla Sign, stage name of American rapper Tyrone Griffin, Jr (born 1982)

• Tiberius "Ty" Blackthorn, from the media franchise The Shadowhunter Chronicles
• Ty Harper, in the Australian soap opera Neighbours
• Ty Lee, a recurring character in the television series Avatar: The Last Airbender
• Ty Turner, in from the American television show The Fairly OddParents: Fairly Odder
• Ty Rux, a T-Trux in the TV series Dinotrux
• Ty Webb, in the film Caddyshack
• The main character in the video game Ty the Tasmanian Tiger
• A character in the arcade game Pit Fighter

• Thank you, Internet chat abbreviation
• Ty (digraph)
• Týr or Ty, a god in Norse mythology
• Ty (company), an American multinational corporation which owns the Beanie Babies franchise
• Tahitian language (ISO 639-1 code ty)
• Transition Year, an academic year in secondary education in Ireland

• Ty Formation, a geologic formation in Wales
• Ty Ty, Georgia, an American city