Henry Lancaster may refer to:
Henry Carrington Lancaster (1882–1954), American scholar of French literature Henry Oliver Lancaster (1913–2001), Australian mathematical statistician Henry IV of England (1367–1413), reigned from 1399 to 1413 Henry V of England (1386–1422), reigned from 1413 to 1422 Henry VI of England (1421–1471), reigned from 1422 to 1461 and again from 1470 to 1471