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.
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Party | Candidate | Votes | % | |
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Democratic | Robert L. Owen (inc.) | 71,356 | 75.50% | |
Democratic | Robert Galbreath Jr. | 23,158 | 24.50% | |
Total votes | 94,514 | 100.00% |
Party | Candidate | Votes | % | |
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Republican | W. B. Johnson | 35,490 | 100.00% | |
Total votes | 35,490 | 100.00% |
Party | Candidate | Votes | % | |
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Socialist | C. M. Greenland | 5,554 | 100.00% | |
Total votes | 5,554 | 100.00% |
Party | Candidate | Votes | % | |
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Democratic | Robert L. Owen (inc.) | 105,009 | 55.47% | |
Republican | W. B. Johnson | 77,043 | 40.69% | |
Socialist | C. M. Greenland | 7,272 | 3.84% | |
Majority | 27,966 | 14.77% | ||
Total votes | 189,324 | 100.00% | ||
Democratic hold |