John Conover Nichols (August 31, 1896 – November 7, 1945) was an American lawyer, World War I veteran, and politician who served four terms as a U.S. Representative from Oklahoma from 1935 to 1943.

[1] During World War I Nichols served in the 19th Infantry, United States Army from 1917 to 1919.

While in office, he served on the Rivers and Harbors, Merchant Marine and Fisheries, Territories Committees.

In 1935 and 1937 he was also a member of a special committee that went to Hawaii to hold hearings on statehood.

[3] Still vice president of Transcontinental & Western Airlines, Nichols died in an airplane crash at Asmara in Eritrea (then under a British Military Administration), on November 7, 1945.