John or Johnny Connolly may refer to:

Arts and entertainment Johnny Connolly (1943/4–2019), Irish folk musician John Connolly (author) (born 1968), Irish novelist John Connolly (musician) (born 1968), American musician Johnny Óg Connolly, Irish folk musician

Law and politics John L. Connolly (1871–1933), Canadian politician in Nova Scotia John Patrick Connolly (1894–1971), American politician convicted of bribery John Joseph Connolly (1906–1982), Canadian parliamentarian and law professor John W. Connolly (1911–1981), American politician in Michigan John R. Connolly (born 1973), American city councillor in Massachusetts John Connolly (Irish politician) (born 1978/79)

Sports John Connolly (hurler) (born 1948), Irish hurler John Connolly (Scottish footballer) (born 1950), Scottish football player and manager John Connolly (rugby union coach) (born 1951), Australian rugby union coach John Connolly (Irish footballer) (born 1971), Irish footballer

Others John Connolly (loyalist) (1741–1813), American physician John Connolly (bishop) (1750–1825), Irish-born bishop of New York John Connolly (FBI) (born 1940), American FBI agent John P. Connolly (businessman) (1950–2025), British businessman John Connolly (blogger), Irish blogger and activist

See also John Connally (1917–1993), American politician, Governor of Texas John Conlee (born 1946), American country music singer Jack Connolly (disambiguation) John Connelly (disambiguation) John Conolly (disambiguation)