| State: | NM |
| Type: | SR |
| Route: | 612 |
| Length Mi: | 9.149 |
| Map Custom: | yes |
| Map Notes: | NM 612 highlighted in red |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | End of state maintenance at the McKinley–Cibola county line |
| Direction B: | North |
| Terminus B: | in Thoreau |
| Counties: | McKinley |
| Previous Type: | NM |
| Previous Route: | 610 |
| Next Type: | NM |
| Next Route: | 615 |
State Road 612 (NM 612) is a 9.1adj=midNaNadj=mid state highway in the US state of New Mexico. NM 612's southern terminus is at the end of state maintenance at the McKinley–Cibola county line, and the northern terminus is at Interstate 40 (I-40) and NM 371 in Thoreau.