General Sir Henry Lynedoch Gardiner KCVO CB (12 February 1820 – 15 December 1897) was a British Army general who served in the Royal Artillery and was on the Royal Commission for the Defence of Canada in 1861. He was the son of General Sir Robert Gardiner and Caroline Mary Macleod. He was born at his grandfather Lieutenant General Sir John Macleod's house in St James's Park. He was educated at the Royal Military Academy, Woolwich, entering the Royal Artillery in 1837, and subsequently serving in Canada and in India.