Heinrich Casimir von Nassau-Dietz
Heinrich Casimir von Nassau-Dietz is the name of the following people:
- Heinrich Casimir I of Nassau-Dietz (1612–1640), Count of Nassau-Dietz and governor of Friesland, Groningen and Drenthe, see Heinrich Casimir I (Nassau-Dietz)
- Heinrich Casimir von Nassau-Dietz (1657–1696), Imperial Prince of Nassau-Dietz and governor of Friesland, Groningen and Drenthe, see Heinrich Casimir II. (Nassau-Dietz)