John Lockwood Wilson (August 7, 1850 – November 6, 1912) was an American lawyer and politician from the U.S. states of Indiana and Washington.

He was appointed by President Chester A. Arthur to the United States General Land Office at Spokane Falls and Colfax in Washington Territory, serving in this position from 1882 to 1887.

Upon the admission of Washington into the Union, Wilson was elected as a Republican in the 1888 elections to the House of Representatives as the representative from Washington's at-large congressional district for the 51st United States Congress.

Wilson was re-elected in 1890 and 1892 to the 52nd and 53rd Congresses, serving from November 20, 1889, to February 18, 1895, when he resigned to become a Senator.

He lost his bid for reelection to Addison G. Foster in 1898 and left office on March 3, 1899.