Maud Barger-Wallach (June 15, 1870 – April 2, 1954) was an American tennis player of the early 1900s.

She was the daughter of Samuel F. Barger, a lawyer and director of the New York Central Railroad, and Edna Jenie LaFavor.

[1] In 1908, Barger-Wallach became the oldest U.S. Open champion at the age of 38 (42-year-old Molla Mallory won in 1926, taking away her old-age record).

[3] She was a right-handed baseline player with an accurate but soft forehand and a weak backhand which, if possible, she tried to run around.

She had an unorthodox playing style characterized by an underhand serve, accurate placements as well as tennis intelligence and determination.