ODA

• Open Data Center Alliance, a cloud-computing standards organisation
• Open Design Alliance, a CAD-promoting group
• Optical Disc Archive, an archiving technology
• Open Document Architecture and interchange format, a file format
• Oracle Database Appliance, an Oracle Corporation engineered system

• Organization Designation Authorization, FAA program for designating airworthiness authority
• Office of Detainee Affairs of the US Department of Defense
• Official development assistance, development aid provided by the member states of the Development Assistance Committee (DAC)
• Oklahoma Department of Agriculture, Food, and Forestry
• Ontarians with Disabilities Act, provincial legislation for disabled persons
• Oregon Department of Agriculture
• Oregon Department of Aviation
• Oregon Office of Degree Authorization
• Overseas Development Administration, predecessor to the United Kingdom's Department for International Development
• Special forces, Operational Detachments-A

• Civic Democratic Alliance (Czech: Občanská Demokratická Aliance), a political party in the Czech Republic, functional 1989–2007
• Civic Democratic Alliance (2016) (Czech: Občanská Demokratická Aliance), the current political party in the Czech Republic.
• United Nations Office for Disarmament Affairs, United Nations Office for Disarmament Affairs
• Ohio Department of Agriculture
• Ohio Dental Association
• Olympic Delivery Authority, one of the two main agencies that organised the London Olympic Games
• Ontario Dental Association
• Organization for Democratic Action, alternate name for the Da'am Workers Party, a political party in Israel
• Overseas Development Administration, forerunner of the UK Department for International Development

Given name

• Oda, a Germanic female name with diminutive Odette
• Oda of Canterbury (died 958), Archbishop of Canterbury from 942
• Saint Oda (680–726) of Scotland (c. 680 – c. 726), a Dutch Roman Catholic saint supposedly of Scottish origin
• Oda of Meissen (c. 996 – aft. 1018), first Queen of Poland

Surname

• Oda (surname)
• Oda clan (Japanese: 織田家), a Japanese feudal clan from the Muromachi/Sengoku period

• Ōda, Shimane, a city in Japan
• Oda, Ghana

• Only Dreamers Achieve, a record label created by Polo G
• Oda (Albania), typical Albanian room
• 1144 Oda, an asteroid
• Oda, nickname for the Izh 2126, a compact hatchback automobile
• Out-of-Door Academy, school in Sarasota, Florida, United States
• Operational Detachment-Alpha, the standard 12-man team composed of US Army Special Forces operators
• Offline Data Authentication, a stage in EMV credit card payment authorization
• Oda Station (disambiguation)