Sir Samuel Gluckstein (28 September 1880 – 19 August 1958) was a solicitor and politician in the Westminster area. He was the son of Isidore Gluckstein, one of the founders of J. Lyons and Co., and his wife Rose née Cohen. Gluckstein was educated at the City of London School and privately. He subsequently studied law and became a partner in the Bartlett & Gluckstein, solicitors. Gluckstein made three unsuccessful attempts to win parliamentary seats for the Conservatives: at Plymouth, Devonport in 1924 and 1929, and at Hammersmith North in 1926.