John Johnston may refer to:
- John Johnston (Indian Agent) (1775–1861), American Indian Agent
- John Johnston (fur trader) (1762–1828), Irish-born leader with his Ojibwa wife in Sault Ste. Marie, Michigan
- John Johnston (farmer) (1791–1880), Scottish-American pioneer in agricultural drainage
- John Johnston (footballer) (1878–1955), Bury and Southampton footballer
- Johnny Johnston (footballer) (born 1947), Northern Irish footballer for Blackpool, Halifax Town, Bradford City and Southport
- John Johnston (Nova Scotia politician) (1790–1836), lawyer and political figure in Nova Scotia
- John Johnston (New Zealand politician) (1810/11–1887), Member of the New Zealand Legislative Council
- John Johnston (courtier) (1922–2006), Comptroller of Lord Chamberlain's Office
- Sir John Baines Johnston (1918–2005), British diplomat
- John B. Johnston (1882–1960), U.S. Representative from New York
- John Frederick Johnston (1876–1948), Canadian Member of Parliament from Saskatchewan
- John Kenneth Johnston (1865–1945), politician in Saskatchewan, Canada
- John Lawson Johnston (1839–1900), creator of Bovril
- John Octavius Johnston (1852–1923), Anglican priest and biographer of Pusey and Liddon
- John S. Johnston (c. 1839–1899), American maritime photographer
- John Stewart Johnston (1905/6-?), Northern Irish politician
- John Taylor Johnston (1820–1893), founding president of the Metropolitan Museum of Art
- John V. Johnston (died 1912), U.S. Navy officer during the American Civil War; namesake of two ships, USS Johnston
- John W. Johnston (1818–1889), American lawyer and Senator from Virginia
- Johnnie Johnston, American actor and singer
- Johnny Johnston (baseball) (1890–1940), American baseball player
- Johnny Johnston of The Johnston Brothers
- John Johnston (UK politician), Northern Irish politician
- John R. Johnston (died 1863), American politician; mayor of Hoboken, New Jersey
- Johnny Johnston (cricketer) (1953–2008), English cricketer
- John Bennett Johnston, Jr. (born 1932), U.S. Senator from Louisiana
Famous quotes containing the word john:
“thinking of
leaning on the john door in the 5 SPOT
while she whispered a song along the keyboard
to Mal Waldron and everyone and I stopped breathing”
—Frank O’Hara (1926–1966)