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 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.