Mark Jameson
- Full Name: Mark Jameson
- Born: 2279 (TNG: "Too Short a Season")
- Species: Human
- Gender: Male
- Wife: Anna Jameson
- By c.2319: Commander, Starfleet (TNG: "Too Short a Season")
- Noted for Mordan IV hostage negotiation (TNG: "Too Short a Season")
- Later revealed c.2364 to have violated Prime Directive in providing weapons to Mordan IV factions (TNG: "Too Short a Season")
- Noted for Mordan IV hostage negotiation (TNG: "Too Short a Season")
- By c.2325: Captain, commanding officer, Starfleet; USS Gettysburg (TNG: "Too Short a Season"; SCE Short Story: "No Surrender")
- By 2360: Rear admiral, Starfleet (TNG: "Too Short a Season")
- Death: April 25, 2364; Mordan IV
- Natural causes exacerbated by age regression treatment