Abhayagiri is a Theravadin Buddhist monastery of the Thai Forest Tradition in Redwood Valley, California. Its chief priorities are the teaching of Buddhist ethics, together with traditional concentration and insight meditation, as an effective way of completely uprooting suffering and discontent. Abhayagiri means 'fearless mountain' in the Pali language.

Redwood Valley is a census-designated place (CDP) in Mendocino County, California, United States. It is located 9 miles (14 km) north of Ukiah, the county seat, at an elevation of 722 feet (220 m), and comprises the northern portion of the Ukiah Valley. It is about 15 miles (24 km) southeast of Willits. Potter Valley is to the east and Calpella to the south. The ZIP Code is 95470, and the community is in area code 707. The population of the CDP was 1,843 at the 2020 census.