Jack Nance
- Birth Date
- 12/21/1943 - 12/30/1996
- Birth Place
- Boston, Massachusetts, USA
- Known For
- Acting

Marvin John Nance (December 21, 1943 – December 30, 1996), known professionally as Jack Nance and occasionally credited as John Nance, was an American actor of stage and screen, primarily starring in offbeat or avant-garde productions. He was known for his work with director David Lynch, particularly for his roles in Eraserhead, Blue Velvet and Twin Peaks.











