Sean Harrington

Sean Harrington or Seán Harrington may refer to:

Seán Harrington (Irish republican), IRA member from Dublin
Seán Harrington (Chief of Staff), Chief of Staff of the IRA
Sean J. Harrington, Canadian judge
Sean Harrington (basketball), 2002–03 [Illinois Fighting Illini men's basketball team|2002–03 Illinois Fighting Illini basketball player]