| KotriSain | |
| Native Name: | Rawat, Patwal |
| Native Name Lang: | hi |
| Other Name: | KotriSain |
| Settlement Type: | Town |
| Pushpin Map: | India Uttarakhand |
| Pushpin Map Caption: | Location of KotriSain in Uttarakhand |
| Coordinates: | 29.7123°N 78.8867°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Uttarakhand |
| Subdivision Type2: | District |
| Subdivision Name2: | Pauri Garhwal |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Hindi |
| Demographics1 Title2: | Regional |
| Demographics1 Info2: | Garhwali |
| Population As Of: | 2011 |
| Population Total: | 500 |
| Elevation M: | 754 |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 246148 |
| Area Code Type: | Telephone code |
| Area Code: | 91-1386-XXXX XXXX |
| Registration Plate: | UA 12, UK 12, UK 15 |
KotriSain is a small village in the Pauri Garhwal district of the Indian state of Uttarakhand. The population of KotriSain is around 500. It covers a wide geographical area, which is hilly and a valley surrounded by Corbett Tiger Reserve.
The main source of income is agriculture. The village has a primary and secondary school. Few children attend the school because of migration of citizens to nearby towns and cities like Kotdwar and sometimes further to Delhi, which is 300km (200miles) away. Children go to Rikhnikhal/Barkhet for senior schooling.
There are few temples nearby: Dhontiyal, which is about 2km (01miles) from the town, and PaniSain Nausainna Devi, located about 4km (02miles) from the town. About 25km (16miles) away, there is a famous temple called Tarkeshwar Mahadev. Kotdwar is about 80km (50miles) from KotriSain.