Ruddington Ordnance & Supply Depot was a Royal Ordnance Factory filling and storage facility, commissioned in 1940 and built during World War II by the United Kingdom Ministry of Defence (MoD). It was located to the south of Ruddington, Nottinghamshire, and took 18 months to build. In operation it consisted of over 200 buildings employing 4,000 workers at peak. It was decommissioned in 1945, became a storage area for ex-military vehicles which were then auctioned-off onsite, and was closed in 1985. Today the site is located in the Rushcliffe Country Park.

Royal Ordnance Factories (ROFs) were munitions factories run by the UK government during and after the Second World War. The three main types of factories were engineering, filling and explosives, and these were dispersed across the country for security reasons. ROFs were the responsibility of the Ministry of Supply and later the Ministry of Defence until privatisation in 1987.