Edmund Lockyer, (21 January 1784 – 10 June 1860) was a British soldier and explorer of Australia. Born in Plymouth, Devon, Lockyer was the son of Thomas Lockyer, a sailmaker, and his wife Ann, née Grose. Lockyer began his army career as an ensign in the 19th Regiment in June 1803, was promoted lieutenant in early 1805 and made captain in August 1805. Lockyer was promoted to major in August 1819 and in August 1824 transferred to the 57th Regiment. Lockyer arrived at Sydney, capital of the British Colony of New South Wales, aboard the Royal Charlotte in April 1825 with men from the 57th; also with his wife and ten children.