A. excelsa

A. excelsa may refer to:


 * Acacia excelsa, a tree species
 * Acropolitis excelsa, a moth of the family Tortricidae
 * Araucaria excelsa, commonly known as the Norfolk Island pine, a tree species in the family Araucariaceae
 * Alphitonia excelsa, commonly known as the red ash or soap tree, a species of tree in the family Rhamnaceae
 * Amanita excelsa, a fungus
 * Autographa excelsa, a moth of the family Noctuidae