| Rainas | |
| Native Name: | राइनास नगरपालिका |
| Settlement Type: | Municipality |
| Nickname: | rainas |
| Mapsize: | 300px |
| Mapsize1: | 300px |
| Map Caption1: | Ward divisions of Rainas municipality |
| Pushpin Map: | Nepal Gandaki Province#Nepal |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Nepal |
| Coordinates: | 28.48°N 84.28°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Nepal |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Name1: | Gandaki |
| Subdivision Name2: | Lamjung |
| Subdivision Type3: | No. of wards |
| Subdivision Name3: | 10 |
| Established Title: | Established |
| Established Date: | 19 September 2015 |
| Government Type: | Mayor-council |
| Leader Title: | Mayor |
| Leader Name: | Mr. Sing Bahadur Thapa |
| Leader Title1: | Deputy Mayor |
| Leader Name1: | Mrs. Dhan Kumari Gurung |
| Area Total Km2: | 71.97 |
| Population Total: | 18,527 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Postal Code: | 33608 |
| Area Code: | 066 |
| Website: | rainasmun.gov.np |
| Timezone: | NST |
| Utc Offset: | +5:45 |
Rainas (Nepali: राइनास) is a municipality of Lamjung District in Gandaki Province of central Nepal. The municipality was declared on 19 September 2015 by merging the existing six VDCs of Eastern Lamjung, Tarkughat, Dhamilikuwa, Chakratirtha, Bhalayakharka, Pyarjung and Mohoriyakot[1] having a total of 73 square km area. The center of this municipality has been established in Tinpiple of Chakratirth VDC. Rainas has a total population of 18,527 and population density of 254 person/km2 according to 2011 Nepal census.[2]
It is named after the historic Rainaskot which was the major strategic fort of the then Lamjung State, a popular and powerful state among the contemporary states of Nepal. Rainas Region consists of many castes braman, chetri, gurung, tamang, bc, etc. (now: Rainas Municipality) has a direct contribution in the foundation of modern Nepal. Bhakti Thapa, the administrator of Rainas region in the early 1800s showed his bravery in defending Nepal from British imperialism. Hence, the identity of Rainas has been dignified in the glorious history of Nepal. Some famous places include Tinpiple and Satbise.
The Government's announcement of additional 26 new municipalities has totaled 217 municipalities in the country. With this announcement Rainas has been upgraded as one of the municipalities of Nepal, previously it was proposed municipality. Adjoining Tarkughat, Dhamilikuwa, Chakratirtha, Bhalayakharka, Pyarjung and Mohoriyakot VDC were merged with Rainas to upgrade it to the municipality.