Charles Azro Prouty (October 9, 1853 – July 8, 1921) was an American Republican politician and government official who was involved with reform movements including the Progressive and Prohibition Parties.

He worked briefly at the Alleghany City Observatory in Pennsylvania, but ill health forced his return to Vermont, where he studied law with Theophilus Grout and was admitted to the bar in 1877.

[4] Prouty was twice elected State's Attorney of Orleans County (1882 and 1884), and in 1888 he won a term in the Vermont House of Representatives.

[5] Prouty served a one-year term, elected by his fellow commissioners, as chairman of the commission from 1912 to 1913.

When Democratic nominee Charles D. Watson withdrew, the party's state committee substituted Prouty.

[9] In 1918, Prouty became the United States Railroad Administration's director of the Division of Public Service and Accounting.