John Parnell

John Parnell may refer to:

• John Parnell (1680–1727), Irish MP for Granard 1713–22
• Sir John Parnell, 1st Baronet (c. 1720–1782), Irish M.P. for Maryborough
• Sir John Parnell, 2nd Baronet (1744–1801), Irish M.P. for Queen's County 1783–1801
• John Parnell, 2nd Baron Congleton (1805–1883)
• John Parnell (cricketer) (1811–1859) Irish-born English cricketer with amateur status
• John Howard Parnell (1843–1923), Parnellite Nationalist MP for South Meath
• John Parnell Thomas (1895–1970), stockbroker and politician
• Jack Parnell (John Russell Parnell, 1923–2010), English bandleader and musician