Mount Lesueur is a near-circular, flat-topped mesa located 21 kilometres from Jurien Bay in Western Australia. It rises above the surrounding lateritic plain of Lesueur National Park which has eroded away around it. Mount Lesueur was first sighted and named by Europeans as the French ship the Naturaliste sailed past Jurien Bay on its voyage up the Western Australian coast. It was named in honour of Charles Alexander Lesueur, a natural history artist on board the ship.