Thomas O'Connell may refer to:
Thomas O'Connell (Medal of Honor) (1842–1899), American Civil War sailor Thomas J. O'Connell (1882–1969), Irish Labour party politician, leader of the party 1927–1932 Thomas W. O'Connell, Assistant Secretary of Defense for Special Operations/Low Intensity Conflict & Interdependent Capabilities Tommy O'Connell (1930–2014), American football player and coach Tommy O'Connell (Kilkenny hurler) (1939–2019), Irish hurler Tommy O'Connell (Cork hurler) (born 2000), Irish hurler Tom O'Connell (television personality) (born 1990), contestant on Big Brother UK Tom O'Connell (cricketer) (born 2000), Australian cricketer