John Long

John Long may refer to:

Politicians

 * John Long (MP for Cricklade) (c. 1419–1478), English Member of Parliament for Cricklade
 * John Long (16th-century MP) (c. 1517 – c. 1600/1602), MP for Knaresborough, Hedon, Shaftesbury and Newcastle-under-Lyme
 * John Long (North Carolina politician) (1785–1857), U.S. Representative from North Carolina
 * John Davis Long (1838–1915), Governor of Massachusetts, later the U.S. Secretary of the Navy
 * John B. Long (1843–1924), U.S. Representative from Texas
 * John A. Long, Australian paleontologist
 * John Andrew Long (1869–1941), Senator in Northern Ireland
 * John David Long (1901–1967), South Carolina state senator
 * John H. Long (political candidate) (fl. late 20th – early 21st centuries), Canadian political figure
 * J. H. Long (John Henry Long, 1845–1898), American politician in Washington State
 * John V. Long (1826–1869), member of the Utah territorial legislature and clerk for Brigham Young

Religion

 * John Longe (1548–1589), English Protestant archbishop of Armagh
 * John Longe (priest), priest and county magistrate
 * John Long (evangelist) (1872–1962), Pentecostal preacher
 * John Long (priest) (1913–2008), Anglican Archdeacon of Ely

Sports

 * John Long (climber) (born 1953), American rock climber and writer
 * John Long (basketball player) (born 1956), American basketball player
 * Johnny Long (American football) (1914–1975), American football quarterback
 * John Long (basketball coach), college men's basketball coach
 * John Long (Australian footballer) (born 1946), Australian rules footballer
 * John Long (Gaelic footballer) (born 1952), Irish Gaelic footballer

Others

 * John Long (artist) (1964–2016), artist and painter from Northern Ireland
 * John Long (computer scientist) (born 1935), British computer scientist
 * John Long (blues musician) (born 1950), American country blues singer, fingerstyle guitarist, harmonica player and songwriter
 * John Dixon Long (1817–1894), American abolitionist
 * John Luther Long (1861–1927), American lawyer and writer whose short story Madame Butterfly inspired the opera by Puccini
 * Johnny Long (musician) (1914–1972), American violinist and big band leader
 * John A. Long (born 1957), Australian paleontologist and author of children's books and popular science and adventure books
 * John H. Long (chemist) (1856–1918), president of the American Chemical Society
 * John Herbert Long (1904–1985), English music teacher and organist
 * John Long Ltd, publisher