| Bidhnu | |
| Settlement Type: | town |
| Pushpin Map: | India Uttar Pradesh |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Uttar Pradesh, India |
| Coordinates: | 26.3333°N 80.2833°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Uttar Pradesh |
| Subdivision Type2: | District |
| Subdivision Name2: | Kanpur |
| Governing Body: | Kanpur District Administration |
| Unit Pref: | Metric |
| Elevation M: | 123 |
| Population Total: | 8000 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 209214 |
| Registration Plate: | UP- |
| Blank1 Name Sec1: | Coastline |
| Blank1 Info Sec1: | 0km (00miles) |
Bidhnu is a town in Kanpur district in the state of Uttar Pradesh, India . This town is 10 miles from, the historical heritage, bhitargaon temple. Due to differences in languages and dialects over time, the word Vishnu became popular with Bidhanu. Kathara, khersa, bidhnoo, afazalpur and ramaipur are most populated gram panchayat of Bidhanu development block. bidhnu is a Development Block in Kanpur nagar tehsil and comes under Kanpur Metropolitan Area.
Bidhnu is well connected by road through NH 86.
Bidhnu is located at . It has an average elevation of 123 meters (406 feet).