John Jefferson Adams (May 17, 1860 - November 6, 1935) was an American lawyer, merchant, and Democratic politician.

[1] James Adams fought for the Confederate Army in the Civil War, in which he died on September 4, 1862.

[1] Starting in 1900, Adams served on the Democratic Executive Committee of Webster County, Mississippi, and he was its Secretary since 1902.

[1] On November 5, 1907, Adams was one of two people elected to represent the 31st District (consisting of Chickasaw, Calhoun, and Pontotoc Counties) in the Mississippi State Senate for the 1908-1912 term.

[1] During this term, Adams served on multiple committees: Constitution; Local & Private Legislation; Immigration; Public Lands; and Pensions.