| Uncha Siwana | |
| Settlement Type: | Town |
| Pushpin Map: | India Haryana#India3 |
| Pushpin Map Caption: | Location in Haryana, India |
| Coordinates: | 29.6208°N 76.9994°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Haryana |
| Subdivision Type2: | District |
| Subdivision Name2: | Karnal |
| Unit Pref: | Metric |
| Population Total: | 10609 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Registration Plate: | HR |
| Iso Code: | IN-HR |
Uncha Siwana is a census town in Karnal district in the Indian state of Haryana.
India census,[1] Uncha Siwana had a population of 10,609. Males constitute 65% of the population and females 35%. Uncha Siwana has an average literacy rate of 75%, higher than the national average of 59.5%: male literacy is 85%, and female literacy is 58%. In Uncha Siwana, 10% of the population is under 6 years of age.