Adolph II, Count of Nassau-Wiesbaden-Idstein (1386 – 16 July 1426) was a son of Walram IV, Count of Nassau-Idstein his wife, Bertha of Westerburg. He married in 1418 with Margaret (1404–1442), a daughter of Bernard I, Margrave of Baden-Baden. After his father's death in 1393, he ruled Nassau-Wiesbaden and Nassau-Idstein.
His children were:
- John (1419–1480), who succeeded him
- Anna, married in 1438 with Everard III of Eppenstein-Königstein
- Adolph (1422–1475)
- Agnes (d. 1485), married in 1464 with Conrad IX of Bickenbach
- This article incorporates information from the equivalent article on the Dutch Wikipedia.