Stephen Thayer Olney (February 15, 1812 â July 27, 1878) was an American manufacturer and botanist with expertise in the genus Carex. He issued the exsiccata Carices Boreali-Americanae ex coll. variorum, distribuit S. T. Olney anno 1870.
The monotypic plant genus Olneya (Olneya tesota, desert ironwood) was named in his honor by his friend and fellow botanist Asa Gray.