An obstacle course is a series of challenging physical obstacles an individual or team must navigate usually while being timed. Obstacle course can include running, climbing, jumping, crawling, and balancing elements with the aim of testing speed and endurance. Sometimes a course involves mental tests.

Obstacle course is used as a way to familiarize recruits with the kind of tactical movement they will use in combat, as well as for physical training, building teamwork, and evaluating problem solving skills. Typical courses involve obstacles the participants must climb over, crawl under, balance, hang, jump, etc. Puddles of muddy water, ropes/nets, and "no touch" restrictions are often used to make the course more difficult.