Mount Lesueur is a near-circular, flat-topped mesa located 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. The next recorded sighting was by Captain George Grey, who led a small party through the area in 1839 after they were shipwrecked near Kalbarri. In 1849 a party led by

A.C. Gregory Sir Augustus Charles Gregory (1 August 1819 – 25 June 1905) was an English-born Australian explorer and surveyor. Between 1846 and 1858 he undertook four major expeditions. He was the first Surveyor-General of Queensland. He was appointed a ...

ascended Mount Lesueur. They were followed the next year by botanical collector James Drummond on the first of his many visits to the area. A reserve (No.24275) was created around Mount Lesueur for "educational purposes" in the 1950s. A more extensive area was gazetted as a national park in 1992. Mount Lesueur has an extremely high level of plant biodiversity, making it of immense research and conservation importance to botanists.

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Lesueur Wheatbelt (Western Australia) {{WesternAustralia-geo-stub