Jason Brevoort Brown (February 26, 1839 – March 10, 1898) was a 19th Century American lawyer and politician who served three terms as a U.S. Representative from Indiana from 1889 to 1895.

Born in Dillsboro, Indiana, Brown attended the common schools and Wilmington Academy, Dearborn County, Indiana. He studied law and was admitted to the bar in 1860. He subsequently commenced a legal practice in Brownstown, Indiana.

He served as a member of the state house of representatives from 1862 to 1866, and as member of the state senate in 1870.

Brown served as Secretary of the Territory of Wyoming from 1873 to 1875. He moved to Seymour, Indiana in 1875 and later became a member of the state senate there, serving from 1880 to 1883.

Brown was elected as a Democrat to the Fifty-first, Fifty-second, and Fifty-third Congresses (March 4, 1889 – March 3, 1895). He served as chairman of the Committee on Elections (Fifty-third Congress). He was an unsuccessful candidate for renomination in 1894.

He resumed the practice of law in Seymour, Indiana, and died there March 10, 1898. He was interred in Riverview Cemetery.

• United States Congress. "Jason B. Brown (id: B000924)". Biographical Directory of the United States Congress.

 This article incorporates public domain material from the Biographical Directory of the United States Congress