The island was named by Charles Wilkes during the Wilkes Expedition of 1838–1842. One of the few names given by Wilkes that does not honor either members of his crew or American naval officers, Eliza refers to Francisco de Eliza, the Spanish commander of a 1791 expedition to the Pacific Northwest. Wilkes may have named the island for his daughter or his sister, both named Eliza.See "Isla de Eliza" by E. Rosamonde Van Miert (2008).
