Thomas Woodnutt Miller (June 26, 1886 – May 5, 1973) was an American politician serving as a Republican U.S. Representative for Delaware's at-large congressional district.

He was a veteran of World War I and a member of the American Legion, who served as a National Legislative Committee chairman.

Miller worked as secretary to U.S. Representative William H. Heald from 1910 until 1912, and during this period studied law in Washington, D.C.

[1] Miller served in the administration of United States President Warren G. Harding, but was convicted in 1927 of conspiring to defraud the U.S.

[2] The conviction concerned Miller's service as Alien Property Custodian and the effort by Metallgesellschaft AG of Germany to overturn the U.S. government's confiscation of its interest in the American Metal Company during World War I.