John Connelly

• John Connelly (baseball), American college baseball coach
• John Connelly (1910s footballer), English footballer
• John Connelly (footballer, born 1938), English footballer
• John Connelly (historian), American historian
• John Connelly (musician), front man and guitarist with band Nuclear Assault
• John Connelly (prospector), Australian prospector and mine owner
• John E. Connelly, Pittsburgh casino and riverboat owner
• John R. Connelly, U.S. Representative from Kansas