Stanley Gretton (1920 or 1921 – 17 June 1975) was a British trade union leader.
He soon became a shop steward, then branch secretary, before working full-time for the union at the district and regional level.
He focused his time on the industry's National Joint Committee for England and Wales, and was chosen as its chair.
He died suddenly in 1975, and was succeeded by Sam Maddox, a more left-wing figure.
[1] Outside his union Gretton also served on the committees of the Churchill Trust, the Pre-Retirement Association, and the Apprenticeship Council of the Baking Industry.