Michael Penzel
- Birthday: 1957-09-07
- Deathday: 2021-12-22
- Place of birth: Chicago, Illinois, USA
- Also know as: Cpl. Kirchner
Michael James Penzel was an American professional wrestler and United States Army paratrooper. He was best known for his appearances with WWE under the ring name Corporal Kirchner in the mid-1980s, as well as his appearances in Japan for New Japan Pro-Wrestling, W*ING, International Wrestling Association Japan, and Frontier Martial-Arts Wrestling under the ring name Leatherface.
