NFN Sobel
- Full Name: NFN Sobel
- Species: Human
- By March 2266: Ensign, security officer, Starfleet; USS Enterprise (TOS Novel: Errand of Vengeance: The Edge of the Sword, Errand of Vengeance: Killing Blow)
- Death: March 31, 2266; FGC-7348 II (TOS Novel: Errand of Vengeance: Killing Blow)
- Killed in defense of locals against Orion Syndicate operations (TOS Novel: Errand of Vengeance: Killing Blow)