John or Jack Fowler may refer to:

• John Fowler (by 1520 – c. 1575) (died c. 1575), MP
• John Fowler (Catholic scholar) (1537–1578/9), Catholic scholar and printer
• John Fowler (politician) (1756–1840), U.S. Congressman from Kentucky
• Sir John Fowler, 1st Baronet (1817–1898), British railway engineer
• John Fowler (agricultural engineer) (1826–1864), English pioneer in the use of steam engines for ploughing
• Sir John Fowler (British Army officer) (1864–1939)
• John Edgar Fowler (1866–1930), U.S. congressman from North Carolina
• Jack Fowler (footballer, born 1899) (1899–1975), Plymouth Argyle, Swansea Town and Wales international footballer
• Jack Fowler (footballer, born 1902) (1902–1979), English footballer with Bradford City and Torquay United
• John Gordon Fowler (1905–1971), United States Air Force general
• John Beresford Fowler (1906–1977), British interior designer
• John Fowler (footballer, born 1933) (1933–1976), Scottish footballer with Colchester United
• John Fowler (mayor) (born 1954), mayor of the City of South Sydney
• Jack Fowler, former lead guitarist for Sleeping with Sirens
• Jack Fowler, reality television personality and contestant on the fourth series of Love Island

• John Fowler & Co., a British engineering company

• Sir John Fowler Leece Brunner, 2nd Baronet (1865–1929), British politician

This disambiguation page lists articles associated with the title John Fowler.
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