Ferdinand Maximilian I of Isenburg-Wächtersbach was a German count of Isenburg-Wächtersbach from 1673 to 1703, and was the first of that county,, and the father of Ferdinand Maximilian II of Isenburg-Wächtersbach. The county lasted from 1673 to 1806, until it was mediated to Isenburg.
- Born
- 1663, December 24, 1661, January 3, 1662
- Died
- March 14, 1703
