Alternative history may refer to a number of subjects relating to history, the chronology and study of the past. It may mean:

• Alternate history, a subgenre of speculative fiction dealing with divergences from the world's actual history
• Counterfactual history, a form of historiography which speculates on "what if" counterfactuals to actual history
• Historical revisionism, the reinterpretation of orthodox views on history or historiography
• Secret history, historical events claimed by revisionists to have been deliberately suppressed or forgotten

See also: Alternative (disambiguation)

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.