William Reginald Armour

William Reginald Armour (September 3, 1869 – December 2, 1922) was an American professional baseball player and manager. He was the manager of the Cleveland Bronchos in 1902 when they signed Nap Lajoie to the most lucrative contract in baseball history and the manager of the Detroit Tigers when they acquired Ty Cobb in 1905. Armour played professional baseball from 1891 to 1896 as a center fielder and right fielder for several minor teams. He earned a reputation for his fielding abilities.

He also had excellent speed and stole 43 bases in 69 games in 1891 and 52 bases in 126 games in 1896. Armour began his managerial career with the Dayton, Ohio baseball club, of which he was also the principal owner.