| State: | NM |
| Type: | SR |
| Route: | 31 |
| Map Custom: | yes |
| Length Mi: | 22.676 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | by Loving |
| Direction B: | North |
| Counties: | Eddy |
| Previous Type: | NM |
| Previous Route: | 30 |
| Next Type: | NM |
| Next Route: | 32 |
State Road 31 (NM 31) is a state highway in the US state of New Mexico. Its total length is approximately 22.7miles. NM 31's southern terminus is by the village of Loving at U.S. Route 285 (US 285), and the northern terminus is at US 62/US 180.