William Wiseman (died 17 October 1346), Sheriff of Elgin (1304-1305) was a 13th-14th century Scottish nobleman.
William was part of the forces of Sir James Douglas during the Battle of the Pass of Brander.
William attended the March 1309 Parliament at St. Andrew's and was a signatory to The Letter from the Magnates of Scotland to King Philip IV of France.
Sir William Wiseman was killed during the Battle of Neville's Cross in Durham, England on 17 October 1346 when the invading Scottish army of King David II of Scotland was defeated by the defending English forces.
William Wiseman is celebrated in the poem "The Brus" by John Barbour, in the section recording The Battle beneath Ben Cruachan,( Book 10 line 46 ) " And Wylyam Wysman a good Knycht"