Sir Samuel Gluckstein (28 September 1880 – 19 August 1958) was a British solicitor and politician.^[1][2]

He was the son of Isidore Gluckstein (1851-1920), son of one of the founders of J. Lyons and Co. (Samuel Gluckstein), and his wife Rose (née Cohen).^[1][2] Gluckstein was educated at the City of London School and privately.

He subsequently studied law and became a partner in the Bartlett & Gluckstein, solicitors.^[1][2] In 1906, he entered local politics when he was elected to Westminster City Council as a Municipal Reform Party councillor. The Municipal Reformers were allied to the parliamentary Conservative Party. He was Mayor of Westminster in 1920-21 and became an alderman in 1924.^[1][2] In 1953 he was made an honorary freeman of Westminster.^[1]

In 1929 he became a member of the London County Council, sitting as a councillor representing Westminster, Abbey until 1949.^[2][3]

He was chairman of the council's finance committee in 1932-34 and Deputy Chairman of the County Council in 1939-40.^[1]

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.^[2]

He was a member of the Court of the University of London, by whom he was awarded an honorary degree in law.^[1][2]

He was knighted in 1933 "for political and public services in Westminster".^[1][2][4]

In 1909 he married Julia, daughter of Samuel Joseph. The couple had no children.^[1][2]