Henry I, Count of Nassau-Beilstein (1307–1388) was a son of Henry I of Nassau-Siegen and his wife, Adelaide of Heinsberg-Blankenberg. His parents had initially destined him for an ecclesiastical career. However, he later married Meyna (Imagina) of Westerburg and after his father's death became the first count of Nassau-Beilstein.
- Occupation
- Count of Nassau-Beilstein
- Citizenship
- Germany
- Born
- June 11, 1323
- Died
- February 24, 1380
