DIY may refer to:

• Do it yourself, a term used by various communities that focus on people creating things for themselves without the aid of paid professionals
  • DIY birth, the process of intentionally giving birth without the assistance of a medical or professional birth attendant
  • DIY culture, a broad term used to refer to a wide range of grassroots political activism
  • DIY ethic, the ethic of being self-reliant as opposed to relying on professionals
  • DIY moving, do-it-yourself packing and moving
  • DIY audio, do-it-yourself audio equipment
• DiY-Fest, a festival of ultra-independent movies, books, zines, music, poetry, and performance art that ran from 1999 until 2002
• DIY Network, a television channel focusing on home do-it-yourself projects
• WarioWare D.I.Y., a video game for the Nintendo DS
• Diary of a Wimpy Kid: Do-It-Yourself Book, an activity book by author and game designer Jeff Kinney
• DiY Sound System, a musical collective originating in the House Music movement in late 1980's Britain, based in Nottingham, England.

In music:

• Do It Yourself (Ian Dury & the Blockheads album)
• Do It Yourself (The Seahorses album)
• DIY, a song from Peter Gabriel (1978 album)
• DIY, a song from Adios (KMFDM album)

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