Antonio José Cavanilles (16 January 1745 – 5 May 1804) was a leading Spanish taxonomic botanist of the 18th century. He named many plants, particularly from Oceania. He named at least 100 genera, about 54 of which were still used in 2004, including Dahlia, Calycera, Cobaea, Galphimia, and Oleandra. The standard author abbreviation Cav. is used to indicate this person as the author when citing a botanical name.