Walter Harper (1893–1918) was an Alaska Native mountain climber and guide.
Walter Harper may also refer to:
Walt Harper (1926–2006), American jazz pianist and nightclub owner Walter Harper (businessman) (1880–1956), Australian agriculturalist Walter Harper (priest) (1848–1930), former Dean of Christchurch
See also Walter Harper North (1871–1952), American jurist Harper (name)