Simon Greul
- Date of birth: April 13, 1981
- Birthplace: Stuttgart, Germany
- Residence: Stuttgart, Germany
- Height: 6'1'' (1.85 m)
- Weight: 180 lbs (80 kg)
- Plays: Right-handed; two-handed backhand
Simon Greul was born April 13th, 1981 in Stuttgart, Germany. His career high rank is number 64, achieved on August 24, 2009.
His major breakthrough was at the 2006 Nasdaq-100 Open, where after beating Adrián García and Ricardo Mello in the qualifying rounds, he reached the round of 16 at the main draw, defeating Paradorn Srichaphan, Dominik Hrbaty, and Tim Henman before succumbing to fourth seed Andy Roddick 6–3, 3–6, 6–2.
