William H. Allen may refer to: William H. Allen (politician) (c. 1851–?), member of the Mississippi House of Representatives William H. Allen (architect) (1858–1936), American architect W. H. Allen (artist) (1863–1943), British watercolor artist W. H. Allen & Co., London publishing company William Henry Allen (1784–1813), American naval officer William Henry Allen (artist) (1894–1988), British artist and printmaker William Howard Allen (1790–1822), American naval officer

See also William Allen (disambiguation)