Jack Sullivan
Jack Sullivan may refer to:
Sportspeople
- Jack Sullivan (baseball), American baseball catcher
- Jack Sullivan (basketball), American basketball coach
- Jack Sullivan (footballer, born 1879), Australian rules footballer for Essendon
- Jack Sullivan (footballer, born 1919), Australian rules footballer for Richmond
- Jack Sullivan (Irish footballer), Ireland international footballer
- Jack Sullivan (lacrosse), Canadian lacrosse player
- Jack Sullivan (rugby union), New Zealand rugby union player and coach
- Jack Sullivan Jr., Australian rules footballer for Carlton
Others
- Jack Sullivan (executive), English football executive
- Jack Sullivan (film director), assistant film director
- Jack Sullivan (journalist), Canadian journalist and writer
- Jack Sullivan (literary scholar), American literary scholar, essayist and writer
- Jack Sullivan, Canadian child who disappeared mysteriously along with his sister in May 2025