John Ritter (disambiguation)
Appearance
John Ritter can refer to:
- John Ritter (1948–2003), American actor
- John Ritter (congressman) (1779–1851), American legislator from Pennsylvania
- John Ritter (racing driver) (died 1948), American racing driver
- Johann Wilhelm Ritter (16 December 1776 – 23 January 1810), A German Chemist, Physicist and Philosopher