Eleanor of Austria (November 15, 1498 – February 25, 1558), also called Eleanor of Castile, is born an Archduchess of Austria and Infanta of Castile from the House of Habsburg, and subsequently becomes Queen consort of Portugal (1518–1521) and of France (1530–1547).

She also holds the Duchy of Touraine (1547–1558) as dower.

She is called "Leonor" in Spanish and Portuguese and "Eléonore" or "Aliénor" in French.