Ten Tors is an annual weekend hike in early May, on Dartmoor, southwest England. Organized by the British Army, starting in 1960, it brings together teams of six young people, with the 2,400 young participants hiking to checkpoints on ten specified tors. The majority of entrants are schools, colleges, Scout groups and Cadet squadrons from South West England, though groups from across the UK have regularly taken part, as have teams from Australia and New Zealand. However, from 2012, only teams from the South West of England are eligible to take part, due to the large numbers of entrants.

Dartmoor is an upland area in southern Devon, South West England. The moorland and surrounding land has been protected by National Park status since 1951. Dartmoor National Park covers 954 km2 (368 sq mi).