Manadon is a suburb of Plymouth in the English county of Devon. It has two primary schools, St Boniface's Catholic College (secondary comprehensive), and is home to the Manadon interchange, on the A38 road. Manadon Park, a development of varying housing types is built on the former site of the RNEC Manadon (HMS Thunderer), the Royal Navy's former Engineering College. The park retains Manadon House, the old Manor House and former chapel from its naval service.