Lybrook is an unincorporated community and census-designated place (CDP) in Rio Arriba County, New Mexico, United States. It was first listed as a CDP prior to the 2020 census. As of the 2020 census, Lybrook had a population of 19.
The CDP is in the southwest corner of the county, bordered to the south by Sandoval County. U.S. Route 550 passes through the center of the community, leading northwest to Bloomfield and southeast to Cuba.
According to the Köppen Climate Classification system, Lybrook has a cold semi-arid climate, abbreviated "BSk" on climate maps. The hottest temperature recorded in Lybrook was on July 22, 1952, while the coldest temperature recorded was on January 7, 1971.