John Austin Keliher (November 6, 1866 – September 21, 1938) was a U.S. Democratic politician. He was born in Boston, Massachusetts. He was elected as a Democrat to the United States House of Representatives from Massachusetts and served from March 4, 1903, to March 3, 1911. Congressman Keliher was the uncle of Brigadier-General John J. Keliher and Rear Admiral Thomas Joseph Keliher.