Herbert John Harvey Parker, normally known as John Parker (15 July 1906 - 24 November 1987) was a long-serving British Labour politician.
John L. Parker (born c1954 in Toronto, Ontario) is a politician in Ontario, Canada. He was a Progressive Conservative member of the Legislative Assembly of Ontario from 1995 to 1999.
John P. Parker (1827 - February 4, 1900) was an African American inventor, industrialist and abolitionist who secretly participated in the Underground Railroad resistance movement. His house in Ripley, Ohio is a National Historic Landmark http://www.ripleyohio.net/parker.htm.