Agnes of Austria may also refer to:

• Agnes of Austria (1154–1182), daughter of Henry II, Duke of Austria, married firstly Stephen III of Hungary, secondly to Herman II, Duke of Carinthia
• Agnes of Austria (1281–1364), daughter of Albert I of Germany, married Andrew III of Hungary
• Agnes of Austria (1322–1392), daughter of Leopold I, Duke of Austria, married Bolko II the Small
• Agnes of Babenberg (1108/13–1160/63), daughter of Leopold III, Margrave of Austria, married Władysław II the Exile
• Agnes of Habsburg (1257–1322), daughter of Rudolph I of Germany, married Albert II, Duke of Saxony