William Tilden
- Date of birth: February 10, 1893
- Birthplace: Philadelphia, USA
- Residence: Los Angeles, USA
William Tatem Tilden II lived from February 10, 1893 – June 5, 1953, nicknamed "Big Bill," he is often considered one of the greatest tennis players of all time. As world No. 1 player for 7 years, Bill Tilden dominated the world of international tennis in the 1920s.
