1990 United States Senate election in New Hampshire
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Smith:      40–50%      50–60%      60–70%      70–80%      80–90%      >90% Durkin: 40–50% 50–60% >90%  | |||||||||||||||||
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| Elections in New Hampshire | 
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The 1990 United States Senate election in New Hampshire was held on November 6, 1990. Incumbent Republican U.S. Senator Gordon J. Humphrey decided to retire and not run for re-election to a third term. Republican Bob Smith won the open seat, easily defeating the Democratic nominee, former senator John A. Durkin.