Gregory Diasourakis
- Full Name: Gregory Diasourakis
- Born: c.2350 (TNG Novel: Resistance)
- "Thirtyish" as of March 2380 per text
- Species: Human
- Gender: Male
- Multiple commendations by early 2380 (TNG Novel: Resistance)
- February 2380: Security officer, Starfleet; USS Enterprise (TNG Novel: Resistance)
- Death: March 15, 2380; Borg cube, Sector 010 (TNG Novel: Resistance)
- Killed by Borg forces during attempted infiltration of vessel (TNG Novel: Resistance)