| Acronym | Definition |
|---|
| DTO | Direito (Portuguese: right; postal usage) |
| DTO | Data Transfer Object |
| DTO | Download-To-Own (video content) |
| DTO | Discover the Outdoors |
| DTO | Dublin Transportation Office (Ireland) |
| DTO | Drug Trafficking Organization |
| DTO | Detention and Training Order |
| DTO | Defensie Telematica Organisatie (Dutch) |
| DTO | Denton Municipal Airport (Texas) |
| DTO | Disruptive Technology Office (US government Intelligence Center; formerly Advanced Research and Development Activity) |
| DTO | Design to Order |
| DTO | Detailed Test Objective |
| DTO | Defense Technology Objective |
| DTO | Danger to Others (biomedical ethics) |
| DTO | Division Transportation Officer |
| DTO | Day Timer Organizer |
| DTO | Development Test Objective |
| DTO | Diluted Tincture of Opium |
| DTO | Dodge Trucks Organization |
| DTO | Daily Turn-On |
| DTO | Digitally Tuned Oscillator |
| DTO | District Transport Office |
| DTO | Dienst Technische Ondersteuning |
| DTO | Data Transport Option (Computer Associates' Unicenter addon) |
| DTO | District Training Officer |
| DTO | Draaitrommeloven (Dutch: rotating barrel oven) |
| DTO | Distilled Tall Oil |
| DTO | Denizli Ticaret Odasi (Turkey) |
| DTO | Dial Tone Office |
| DTO | Doomed to Obscurity |
| DTO | Discovery Trekking Outfitters (California) |
| DTO | Directorate of Traffic Operations (UK) |
| DTO | Dithiooxalate (ligand) |
| DTO | Domino Translation Object |
| DTO | Direct Turnover |
| DTO | Deliver-To-Order |
| DTO | Detroit Tamburitza Orchestra (Warren, MI) |
| DTO | District Tax Office |
| DTO | Dutch Toilet Organisation (Netherlands) |
| DTO | Data Terminal Operator |
| DTO | Demonstration Test Objective |
| DTO | District Technology Office |
| DTO | Defense Technology Office |
| DTO | Data for Testifying Officers (USACE) |
| DTO | DeskTop Organization |
| DTO | Director of Technical Operations |
| DTO | DHAPP (Depatment of Defense HIV/AIDS Prevention Program) Travel Office |
| DTO | Dum Techniky Ostrava |
| DTO | Destroy the Opponent (gaming clan) |
| DTO | Domain Test Object |
| DTO | Diocese of Toledo Collection |
| DTO | Diffusion Thermique Ouest (French) |
| DTO | Dollar Trade-Off |
| DTO | District Transportation Officer |
| DTO | Detective-Talk-Off |
| DTO | Department of Telecommunication Operations |
| DTO | Data Takeoff |
| DTO | Deputy Director for Technical Operations (J8) (JCS) |
| DTO | Dual-Trace Oscilloscope |
| DTO | Douglas Timbers Operation |
| DTO | Derived Test Objective |
| DTO | Determine Treatment Options |
| DTO | Data Transfer Operation |