John Mayor (1735-1817) was an English brewer and politician who sat in the House of Commons between 1774 and 1782.
He became a brewer in London and owned extensive property at Langtons House near Hornchurch Essex.
He was re-elected in the 1780 election but for unknown reasons he vacated his seat in December 1782.
Mayor's only parliamentary speeches were in opposing a tax on malt.
[2] Mayor was asked to submit to the Treasury a plan for controlling the supply of government stationery and in 1786 this resulted in the establishment of HM Stationery Office of which he became the first superintendent.