Harold (disambiguation)


 * Characters:
 * Harold, an FEV mutant who eventually consumed and symbiotically fused with a tree, appearing in Fallout, Fallout 2, Fallout 3 and Fallout: Brotherhood of Steel.
 * HAROLD.MSG, dialogue for Harold in Fallout.
 * Harold Worthington III, a visitor of the Statesman Hotel, mentioned in Fallout 3.
 * Harold Callahan, a security officer in the Pentagon before the Great War, mentioned in the Fallout 3 add-on Broken Steel.
 * Harold Nash, the chief curator of the Museum of Freedom before the Great War, mentioned in Fallout 4.
 * Harold Frost, a lead research & development employee at Garrahan Mining, mentioned in Fallout 76.
 * Harold Nowak, a safety inspector at Crevasse Dam before the Great War, mentioned in Fallout 76.
 * Harold Clark, a company executive and resident of Vault 51, mentioned in the Fallout 76 update Nuclear Winter.
 * Harold (Fallout Tactics), a Ghoul recruit and member of the Brotherhood of Steel in Fallout: Tactics.


 * Real-life person:
 * Harold Kim, a developer who worked at Interplay Entertainment as a quality assurance project supervisor on Fallout Tactics.