| Gangapur | |
| Native Name Lang: | hi |
| Settlement Type: | Town |
| Pushpin Map: | India Uttar Pradesh Varanasi |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Uttar Pradesh, India |
| Coordinates: | 25.4598°N 82.8782°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Uttar Pradesh |
| Subdivision Type2: | District |
| Subdivision Name2: | Varanasi |
| Unit Pref: | Metric |
| Elevation M: | 448 |
| Population Total: | 6388 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
Gangapur is a town and a nagar panchayat in Varanasi district in the state of Uttar Pradesh, India.
As of the 2001 Census of India,[1] Gangapur had a population of 6,388. Males constitute 53% of the population and females 47%. Gangapur has an average literacy rate of 55%, lower than the national average of 59.5%: male literacy is 63%, and female literacy is 46%. In Gangapur, 20% of the population is under 6 years of age.