Whig history (or Whig historiography) is the approach to historiography which presents the past as an inevitable progression towards ever greater liberty and enlightenment, culminating in modern forms of liberal democracy and constitutional monarchy. In general, Whig historians emphasize the rise of constitutional government, personal freedoms, and scientific progress. The term is often applied generally (and pejoratively) to histories that present the past as the inexorable march of progress towards enlightenment. The term is also used extensively in the history of science for historiography which focuses on the successful chain of theories and experiments that led to present-day science, while ignoring failed theories and dead ends. It is claimed that Whig history has many similarities with the Marxist-Leninist theory of history, which presupposes that humanity is moving through historical stages to the classless, egalitarian society to which communism aspires.

Whig history is a form of liberalism, putting its faith in the power of human reason to reshape society for the better, regardless of past history and tradition. It proposes the inevitable progress of mankind. Its opposite is conservative history or "Toryism." The English historian A. J. P. Taylor commented, "Toryism rests on doubt in human nature; it distrusts improvement, clings to traditional institutions, prefers the past to the future."