Albert Spear Hitchcock (September 4, 1865 — December 16, 1935) was an important American botanist and agrostologist.Hitchcock graduated from the Iowa Agricultural College with bachelor's degree in 1884 and M.S. in 1886. From 1892 to 1901 he was a professor of botany at the Kansas Agricultural College. Hitchcock joined the USDA in 1901 as Assistant Agrostologist under Frank Lamson-Scribner. In 1905 he was put in charge of the grass herbarium and became Systematic Agrostologist.