Adelaide Augusta Keim (February 15, 1879[1] – June 25, 1946) was an American actress on Broadway and in vaudeville.

[6] Keim began her stage career being managed by Daniel Frohman in 1898 and appeared at his Lyceum Theatre.

[7] Keim's Broadway credits included roles in Trelawny of the 'Wells' (1898),[8] At the White Horse Tavern and Twelve Months Later (1900),[9] Terence (1904),[10] The Prince of India (1906),[11][12] and The Right to Happiness (1912).

[16] In 1905 Keim played the title role in Hamlet in Baltimore, New York, and Chicago.

[20] Keim was involved with her Proctor's Theater costar Ned Howard Fowler in 1903 until her parents intervened, and both actors moved to other stock companies.