Sir Frederick Messer CBE 12 May 1886–8 May 1971 was a British trade unionist and Labour politician. He was a member of the House of Commons and Chairman of Middlesex County Council.
Messer was born in north London, and was the son of a poor law officer. He was educated at Thornhill Primary School, Islington before entering an apprenticeship as a French polisher. He became one of the first members of the French Polishers Union. He subsequently changed his career, becoming national organiser of the Industrial Orthopaedic Society.
He was elected as a Labour Party Member of Parliament (MP) for Tottenham South at the 1929 general election. Two years later another election was held and Messer was defeated in a straight fight with the National Labour candidate, Francis Palmer The situation was reversed when he regained the seat from Palmer at the next general election in 1935. He held the seat until its abolition in 1950, and was MP for the successor seat of Tottenham from 1950 until his retirement from parliament in 1959. He was appointed a Commander of the Order of the British Empire in 1948 "for political and public services" and knighted in 1953.