Rev. William Collings Lukis MA. FSA (8 April 1817 in Guernsey – 7 December 1892 in Wath, North Riding of Yorkshire) was a British antiquarian, archeologist and polymath. William Collings Lukis was the third son of Frederick Corbin Lukis, the Colonel of Guernsey Militia. He was educated at Trinity College, Cambridge. He was married to Lucy Adelaide, daughter of Admiral Sir Thomas Fellowes. His sister Louisa was married to William Thomas Collings, Seigneur of Sark, and is the ancestor of the island's ruler until 2016, Michael Beaumont.