| Election Name: | 1984 United States Senate election in New Hampshire |
| Country: | New Hampshire |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1978 United States Senate election in New Hampshire |
| Previous Year: | 1978 |
| Next Election: | 1990 United States Senate election in New Hampshire |
| Next Year: | 1990 |
| Election Date: | November 6, 1984 |
| Image1: | File:Gordon J. Humphrey (cropped).jpg |
| Nominee1: | Gordon J. Humphrey |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 225,828 |
| Percentage1: | 58.75% |
| Nominee2: | Norman D'Amours |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 157,447 |
| Percentage2: | 40.96% |
| U.S. Senator | |
| Before Election: | Gordon J. Humphrey |
| Before Party: | Republican Party (United States) |
| After Election: | Gordon J. Humphrey |
| After Party: | Republican Party (United States) |
The 1984 United States Senate election in New Hampshire was held on November 6, 1984.
Senator Gordon Humphrey was re-elected to a second term in office.
Senator Humphrey was unopposed for re-nomination by the Republican Party.
Representative D'Amours was unopposed for the Democratic nomination.
During the campaign, D'Amours accused Humphrey of being "ultraconservative." Humphrey, long considered a target for Senate Democrats, may have been helped by his support of environmental programs, including an increase for Superfund spending.[1]