Friedrich zu Castell
Friedrich zu Castell is the name of the following people:
- Friedrich I. zu Castell († around 1251), ruler of the county of Castell
- Friedrich II. Zu Castell († around 1349), ruler of the county of Castell
- Friedrich III. zu Castell († around 1376), ruler of the county of Castell
- Friedrich IV. Zu Castell (around 1435 – around 1498), ruler of the County of Castell
- Friedrich zu Castell-Castell (1874–1919), German administrative lawyer
- Friedrich Carl zu Castell-Castell (1864–1923), Prince of Castell-Castell
- Friedrich Ludwig Carl Christian zu Castell-Rüdenhausen (1746–1803), German sovereign and patron
- Friedrich Magnus zu Castell-Remlingen (1646–1717), German sovereign and field marshal