Jason Niles (December 19, 1814 – July 7, 1894) was a lawyer, newspaper editor, and politician in the United States.

[1] While teaching school, Niles studied law; he was admitted to the bar in 1851 and began a practice in Kosciusko.

[1] During the American Civil War, Niles was a supporter of the Union;[1] he remained in Mississippi, and worked to keep a low public profile.

[1] With the end of Reconstruction in Mississippi, the Democratic Party returned to power, and Niles was an unsuccessful candidate for reelection in 1874.

[2] Jason Niles was the cousin of Thomas Brackett Reed, who served as Speaker of the United States House of Representatives.