| Election Name: | 1920 United States House election in New Mexico |
| Country: | New Mexico |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1918 United States House of Representatives election in New Mexico |
| Previous Year: | 1918 |
| Next Election: | 1922 United States House of Representatives election in New Mexico |
| Next Year: | 1922 |
| Election Date: | November 2, 1920 |
| Image1: | File:Néstor Montoya.jpg |
| Nominee1: | Néstor Montoya |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 54,672 |
| Percentage1: | 51.88% |
| Nominee2: | Antonio Lucero |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 49,426 |
| Percentage2: | 46.90% |
| Map Size: | 215px |
| Representative At-large | |
| Before Election: | Benigno C. Hernández |
| Before Party: | Republican Party (United States) |
| After Election: | Néstor Montoya |
| After Party: | Republican Party (United States) |
The 1920 United States House of Representatives election in New Mexico was held on November 2, 1920, to elect the state's at-large representative. Incumbent Republican Benigno C. Hernández chose not to run for re-election to a third term.
This was the first time republicans won this district in back to back elections. Montoya under performed Warren G. Harding's performance in the concurrent presidential election by about 5 percentage points.