•
Bill Alexander (engineer) (William Hector, 1927–1995), British avionics engineer •
William Alexander, 1st Earl of Stirling (c. 1567–1640), British colonial organizer •
William Alexander (the younger) (c. 1602–1638), founder of the colony at Port Royal; son of the 1st Earl of Stirling •
William Alexander (judge) (c. 1754–1842), Lord Chief Baron of the Exchequer •
Sir William Alexander, 3rd Baronet (1797–1873), Attorney-General of the Duchy of Cornwall •
William C. Alexander (1848–1937), cofounder of Pi Kappa Alpha Fraternity •
William Cowper Alexander (1806–1874), president of the New Jersey State Senate and president of the Equitable Life Assurance Society •
William D. Alexander (1916–1991), American film producer •
William DeWitt Alexander (1833–1913), educator in Hawaii •
William Hastings Alexander (c. 1823–1876), Hong Kong judiciary officer •
Bill Alexander (director) (born 1948), American theatre director ==See also==