Glenwood Cemetery is located in Houston, Texas, United States. Developed in 1871, the first professionally designed cemetery in the city accepted its first burial in 1872. Its location at Washington Avenue overlooking Buffalo Bayou served as an entertainment attraction in the 1880s. The design was based on principles for garden cemeteries, breaking the pattern of the typical gridiron layouts of most Houston cemeteries. Many influential people lay to rest at Glenwood, making it the "River Oaks of the dead." As of 2018, Glenwood includes the annexed property of the adjacent Washington Cemetery, creating a total area of 84 acres (34 ha) with 18 acres (7.3 ha) still undeveloped.

Notable burials at Glenwood include former residents of the Republic of Texas, some who were re-interred from condemned cemeteries from downtown Houston. Charlotte Allen and William Robinson Baker were early arrivals to Houston, and also long time residents. Baker was one of several interments of former mayors of Houston. The last president of the Republic of Texas, Anson Jones, has a family plot. Former governors of Texas and a former governor of Mississippi lie at rest at the cemetery, as do some high-ranking federal officials. Scions of the oil business include two co-founders of Sharp-Hughes Tools, as well as founders and early investors of Texaco and Humble Oil. The founding president of Rice University, the school's chief architect, and the institute's first trustee are found at Glenwood.