Eriogonum brandegeei (sometimes spelled brandegei) is a species of flowering plant in the buckwheat family known by the common name Brandegee's buckwheat. It is endemic to Colorado in the United States, where it occurs in Fremont and Chaffee Counties. Bentonite mining is a potential threat, but not a current one. Fossil excavation is a very low-level threat to some occurrences. Livestock grazing is a threat, but an indirect one, as it tends to increase erosion of the substrate. Despite threats and limited available habitat, the species appears to be stable.