The Olympic Delivery Authority (ODA) was the public body that developed and built the new venues and infrastructure for the London 2012 Olympic and Paralympic Games.

The ODA was publicly funded by the National Lottery through the Olympic Lottery Distributor, the Department for Culture, Media and Sport, and the Greater London Authority.

The ODA worked closely with the London 2012 Organising Committee of the Olympic Games and Paralympic Games (LOCOG), the private sector company responsible for staging and hosting the 2012 Games.

ODA responsibilities:
• Building new permanent venues for the Games and use afterwards
• Building temporary facilities that are being dismantled and/or relocated post Games
• Improvement works to existing sports venues at Eton Dorney and Weymouth and Portland
• Planning and delivering transport infrastructure and operations to support the Games
• Planning and enforcing the regulation of advertising and trading in and around London 2012 events during the Games.

Post Games the ODA was responsible for:
• Retrofit of the Olympic and Paralympic Village (spring 2014) – transforming it from athletes apartments into 2,818 homes, around half of which will be affordable housing
• Taking down the temporary venue at The Royal Artillery Barracks and returning the site to the Ministry of Defence in spring 2013.
• The close out of more than £6 billion of commercial contracts.

The ODA was wound-up in 2014.