Lavender Peak is a high mountain summit in the La Plata Mountains range of the Rocky Mountains of North America. The thirteener is located in San Juan National Forest, northeast by east (bearing 61°) of the Town of Mancos in Montezuma County, Colorado, United States. The peak lies east-southeast of the higher and more well-known Hesperus Mountain. Lavender Peak was named in honor of Dwight Garrigues Lavender (1911-1934), the author of a 1932 climbing guide to the San Juan Mountains.