Thorndon Park Reserve is a public park in the Adelaide suburb of Paradise, South Australia. It was formerly the site of the Thorndon Park reservoir, which was completed in 1860. The reserve became accessible to the public for recreational use in 1986. It was redesigned in the 2000s and as of 2015 improvement works are ongoing. The reserve has picnic areas, barbecues, play equipment for children, large grassy areas, wheelchair-friendly walking paths, an amphitheatre, waterways and a terraced series of ponds and wetlands which support diverse native flora and fauna. In 2014, the prospect of establishing a community orchard within the Thorndon Park Reserve was considered. Dogs are not permitted in the park.