Louis John Tillett (born 13 June 1865 in Sprowston, Norfolk and died 24 November 1929 in Buxton, Norfolk) was a Liberal Party politician. He was elected as a Member of Parliament (MP) for Norwich at the 1904 by-election on 15 January 1904. He was re-elected in 1906 and held the seat until he stood down from the House of Commons at the 1910 general election in January of that year.