William Howland may refer to:
William Howland (musician) (1871–1945), American operatic bass, voice teacher, composer, conductor and university administrator William Bailey Howland (1848–1917), American editor William Howland (American politician) (1823–1905), American politician William Goldwin Carrington Howland (1915–1994), Canadian lawyer, judge and former Chief Justice of Ontario William Holmes Howland (1844–1893), Canadian politician William Pearce Howland (1821–1907), Canadian politician