Harold (disambiguation)


 * Harold - A FEV mutant (eventually a part-tree) who has appeared in Fallout, Fallout 2, Fallout 3 and Fallout: Brotherhood of Steel
 * Harold - A ghoul member of the Midwestern Brotherhood of Steel in ''Fallout: Tactics
 * Harold Callahan - Mentioned-only US Army trooper in the pre-War Pentagon in Broken Steel
 * Harold Worthington III - Mentioned-only visitor of the Statesman Hotel in Fallout 3