Andrew Crichton (1790–1855) was a Scottish biographer and historian. Crichton, youngest son of a small landed proprietor, was born in the parish of Kirkmahoe, Dumfriesshire, December 1790, and educated at Dumfries Academy and at the university of Edinburgh. He contributed extensively to periodicals, among others to the Westminster Review, Tait's Edinburgh Magazine, the Dublin University Magazine, Fraser's Magazine, the Church Review, and the . He died at 33 St. Bernard's Crescent, Edinburgh, 9 Jan. 1855. He was a good friend of Leitch Ritchie, who was his neighbour at St Bernards Cresecent.