The 1936 United States Senate election in Oklahoma took place on November 3, 1936. Incumbent Democratic Senator Thomas Gore ran for re-election to his second consecutive term, and fifth term overall. He ended up easily losing renomination, however; he placed a distant fourth in the Democratic primary. A runoff election between Congressman Joshua B. Lee and Governor Ernest W. Marland resulted in a landslide win for Lee. In the general election, Lee faced Republican nominee Herbert K. Hyde, whom he overwhelmingly defeated.
Though a runoff election was scheduled between Hyde and McKeever, McKeever withdrew from the race on July 13, 1936, ceding the nomination to Hyde.