DTO

DTO or dto may refer to:

• Denkmäler der Tonkunst in Österreich, a series of Austrian sheet music (1894–2017)
• Disney's Toontown Online, an MMORPG video game (2003–2013)
• Download to own, in media distribution
• "D.T.O.", a song on the eponymous metalcore album Vision of Disorder

• Data transfer object, in computer programming
• Deodorized (or denarcotized) and diluted tinctures of opium, two drugs; see Laudanum § Misinterpretation of "DTO"
• Download to own, in media distribution
• Driverless train operation, on railways

• Disruptive Technology Office, a US military funding agency (1998–2007)
• Drug trafficking organizations, in US law enforcement
• Domestic terrorist organization, in US law enforcement
• Tommo So, spoken in Mali (ISO 636:dto)
• Denton Municipal Airport, Texas, US (by IATA and FAA code)