| State: | Colorado |
| District: | 51 |
| Chamber: | House of Representatives |
| Representative: | Ron Weinberg |
| Party: | Republican |
| Residence: | Loveland |
| Democratic: | 21.6 |
| Republican: | 30.3 |
| Npp: | 46.2 |
| Percent White: | 84 |
| Percent Black: | 0.8 |
| Percent Hispanic: | 12.9 |
| Percent Asian: | 1.1 |
| Percent Native American: | 0.1 |
| Percent Multiracial: | 9.0 |
| Population: | 87,678[1] |
| Population Year: | 2020 |
| Registered: | 63,180 |
Colorado's 51st House of Representatives district is one of 65 districts in the Colorado House of Representatives. It has been represented by Republican Ron Weinberg since 2023.
District 51 covers the home rule municipality of Loveland.
The district is located entirely within Colorado's 2nd congressional district and the 15th Senate district.[2]