1918 United States Senate election in Oklahoma

The 1918 United States Senate election in Oklahoma took place on November 5, 1918. Incumbent Senator Robert L. Owen, a Democrat, sought re-election in his first popular election. He won the Democratic primary in a landslide and faced former U.S. Attorney W. B. Johnson in the general election. Owen won re-election by a wide margin.

Candidates

 * Robert L. Owen, incumbent U.S. Senator
 * Robert Galbreath Jr., oilman

Candidates

 * W. B. Johnson, former U.S. Attorney

Candidates

 * C. M. Greenland