John Henry Keating (28 June 1872 – 31 October 1940) was an Australian politician who served as a Senator for Tasmania from 1901 to 1923.

He held ministerial office in Alfred Deakin's second government, serving as Vice-President of the Executive Council (1906–1907) and Minister for Home Affairs (1907–1908).

He was awarded an Associate of Arts degree by the Tasmanian Council for Education in 1890, and went on to become one of the University of Tasmania's first law graduates in 1896.

[1] He supported the establishment of a system of compulsory conciliation and arbitration a Commonwealth old-age pension scheme and a White Australia.

Although he fully supported Australia's participation in World War I, he voted to force the Hughes government to an election in 1917 in protest at Hughes' manoeuvering to have the Tasmanian Government replace Labor Senator Rudolph Ready—who had been forced by ill-health to resign—with the Nationalist John Earle, thus gaining control of the Senate.