Johann Wilhelm Duke of Saxe Gotha Altenburg
- Category : Notable-Famous-Royal-family
- Type : MGP
- Profile : 2/4 - Hermit / Opportunist
- Definition : Single
- Incarnation Cross : RAX Maya 3
German nobleman, a duke of Saxe-Gotha-Altenburg. He was a son of Friedrich I, Duke of Saxe-Gotha-Altenburg and Magdalene Sibylle of Saxe-Weissenfels.
He served as General Imperial (in the Imperial Army of the Holy Roman Empire).
He was killed in battle at Toulon, 15 August 1707.