| Election Name: | 1972 New Hampshire Republican presidential primary |
| Country: | New Hampshire |
| Flag Year: | 1931 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1968 New Hampshire Republican presidential primary |
| Previous Year: | 1968 |
| Next Election: | 1976 New Hampshire Republican presidential primary |
| Next Year: | 1976 |
| Image1: | Richard Nixon presidential portrait (1).jpg |
| Candidate1: | Richard Nixon |
| Color1: | d30036 |
| Home State1: | California |
| Popular Vote1: | 79,239 |
| Percentage1: | 67.6% |
| Candidate2: | Pete McCloskey |
| Home State2: | California |
| Popular Vote2: | 23,180 |
| Percentage2: | 19.8% |
| Colour2: | 37c837 |
| Home State3: | Ohio |
| Image3: | JohnMAshbrook.jpg |
| Colour3: | 1E90FF |
| Candidate3: | John M. Ashbrook |
| Popular Vote3: | 11,362 |
| Percentage3: | 9.7% |
See main article: 1972 Republican Party presidential primaries.
The 1972 New Hampshire Republican presidential primary was held on March 7, 1972, in New Hampshire as one of the Republican Party's statewide nomination contests ahead of the 1972 United States presidential election. Incumbent President Richard Nixon faced his first major test in New Hampshire against two minor challengers: liberal anti-Vietnam war candidate Pete McCloskey of California and conservative John Ashbrook of Ohio, who opposed Nixon's détente policies towards China and the Soviet Union. Nixon won the Granite State in a landslide, resulting in the withdrawal of McCloskey from the primaries (he promised to do so if he failed to reach >20% of the vote) and a clear path for the incumbent President to receive the Republican nomination.[1] [2] [3]