John Glass may refer to:
John Glass (administrator), acting Superintendent of Penang while Francis Light was attending to other duties John M. Glass (1843–1925), mayor and chief of police John P. Glass (1821–1868), speaker of the Pennsylvania House of Representatives John Judah Glass (1897–1973), Canadian politician John Glass (footballer) (1908–1991), Scottish footballer John Glass (1911–1998), Australian speedway rider under the pseudonym Mick Murphy (speedway rider) John Glass (academic), professor and synthetic biologist