John Gray

Politics and government

• John Gray (North Carolina politician), American politician, member of the North Carolina General Assembly of 1777
• John Gray, American politician, member of the Virginia House of Delegates, 1800–1821
• John C. Gray, United States representative from Virginia
• John Gray (socialist), English economic pamphleteer, utopian socialist, and exponent of Ricardian economics
• John Gray (New Zealand politician), member of the New Zealand Parliament
• John Hamilton Gray (Prince Edward Island politician), Canadian politician, Premier of Prince Edward Island
• John Hamilton Gray (New Brunswick politician), Canadian politician, Premier of New Brunswick
• Sir John Gray (Irish politician), Irish Member of Parliament for Kilkenny, 1865–1875
• John Gray (Wisconsin politician, born 1817), American politician, member of the Wisconsin State Assembly
• John S. Gray (Idaho politician), American politician, Lieutenant Governor of Idaho
• John Gray (Ontario politician), Canadian politician, member of the Legislative Assembly of Ontario
• John Gray (New South Wales politician), Australian senator
• John Gray (Victorian politician, died 1925), Australian politician, member of the Victorian Legislative Assembly
• John H. Gray (Illinois politician), Illinois state representative
• John Gray (North Dakota politician), American politician, North Dakota State Treasurer
• John Austin Gray, Australian politician, member of the Victorian Legislative Assembly
• John R. Gray (politician), American politician, member of the Wisconsin State Assembly
• Sir John Gray (diplomat), British diplomat
• John Gray (Oshawa politician), former mayor of Oshawa, Ontario, Canada

Law and crime

• John Gray (barrister), British barrister and legal writer
• John Chipman Gray, American law professor and legal scholar
• John Clinton Gray, American judge in New York
• John Joe Gray, fugitive from the law in Trinidad, Texas, United States

Military

• John Gray (American Revolutionary War soldier), U.S. soldier, said to be the longest surviving veteran of the war
• John Gray (Medal of Honor), Medal of Honor recipient in the American Civil War
• Sir John Gray (Royal Navy officer), British admiral
• John P. Gray (naval officer), United States Navy officer, pilot, and Navy Cross recipient

Arts and humanities

Literature and music

• John Gray (Canadian author), Canadian journalist and biographer
• John Gray (American author), American author best known for his book Men Are from Mars, Women Are from Venus
• John Gray (composer), Australian film composer, writer of the score for 2006 film The Bet
• John Gray (mythologist), Scottish author of books on history and mythology
• John Gray (poet), English poet and Catholic priest
• John MacLachlan Gray, Canadian writer, playwright and composer of musicals

Visual art

• John Gray, Scottish engineer and philanthropist for whom the Gray's School of Art is named
• John Miller Gray, Scottish art critic and curator

Other arts and humanities

• John Gray (museum administrator), American museum director
• John Gray (philosopher), British philosopher

Religion

• John Gray (Episcopalian minister), minister of the Episcopal Church of Scotland
• John Gray (Scottish bishop), Roman Catholic vicar apostolic for Western Scotland
• John Gray (archdeacon of Hong Kong), Archdeacon of Hong Kong
• John R. Gray (minister), Moderator of the General Assembly of the Church of Scotland in 1977
• John Gray (New Zealand bishop), New Zealand Anglican bishop

Science, medicine and technology

• John Gray (mathematician), Scottish mathematician, author and Rector of Aberdeen University
• John Edward Gray, British zoologist
• John Franklin Gray, American educator and physician, first practitioner of homeopathy in the United States
• John Gray (locomotive engineer), locomotive superintendent of the London Brighton and South Coast Railway, 1845–1847
• John P. Gray (psychiatrist), American psychiatrist
• John McFarlane Gray, Scottish engineer
• John H. Gray (economist), American economist
• Sir John Gray (physiologist), British physiologist
• John Stuart Gray, British-Norwegian marine biologist

Business

• John Gray (Canadian banker), president of the Bank of Montreal
• John Gray, British founder of Gray and Davison pipe organ builders in 1841
• John S. Gray (businessman), Scottish-born American candymaker, businessman, and first president of Ford Motor Company
• John Gray (British banker), British banker

Sport

• John Gray (Australian footballer), Australian rules footballer for Melbourne University FC and medical doctor
• John Gray (runner, born 1894), American Olympic runner
• John Gray (boxer), Filipino Olympic boxer
• Johnny Gray (baseball), American baseball pitcher
• John Gray (English sportsman), English cricketer, and rugby union and rugby league footballer
• John Gray (ice hockey), Canadian ice hockey player
• Johnny Gray, American runner

Broadcasting and entertainment

• John MacLachlan Gray, Canadian playwright, composer, and performer
• John Gray (director), American writer and director
• John J. Gray, American television writer and producer
• John Gray, television news anchor on WXXA-TV in Albany, New York

Ships

• MV John Hamilton Gray, Canadian icebreaking railway, vehicle, and passenger ferry
• USS John P. Gray (APD-74), United States Navy high-speed transport

Other

• John Gray (master mariner), British captain of the SS Great Britain
• John Gray (nightwatchman), owner of Greyfriars Bobby
• John E. Gray, American educational administrator and businessman, president of Lamar University
• John Hunter Gray, American sociologist and civil rights activist