Anna of Nassau-Dillenburg (21 September 1541 in Dillenburg – 12 February 1616 in Weilburg) was a daughter of Count William "the Rich" of Nassau-Dillenburg and his second wife, Juliana of Stolberg.
She married Count Albert of Nassau-Weilburg on 16 June 1559 and had the following children:
Anna Amalia (1560–1635), married Count Otto of Solms-Sonnewald
Juliane (1562)
Catherine (1563–1613), died unmarried
Louis II (1565–1627); inherited Ottweiler
George Philip (1567–1570)
Albert (1569–1570)
William (1570–1597); inherited Weilburg
Elizabeth (1572–1607), married Count George II of Sayn-Wittgenstein-Berleburg
Juliane (born: 1574)
John Casimir (1577–1602), married Elisabeth, a daughter of George I, Landgrave of Hesse-Darmstadt; inherited Gleiberg
Anna Ottilie (1582–1635), married Count William III of Sayn-Wittgenstein
Anna Sibylla (born: 1575), married Baron Peter Ernest II of Krichingen-Püttlingen
Magdalena (1580–1658), died unmarried
Ernestina (1584–1665), married Louis Philip of Wied