The Chief of Staff for the Federation Starfleet (also known as the Starfleet Chief of Staff) was a senior Federation Starfleet flag officer, ranking below the Commanding Officer, Starfleet Command. In some matters, the Starfleet Chief of Staff possessed autonomy from their immediate superior; the office's authority over Free Agents was among those matters. (FASA RPG module: Star Trek IV Sourcebook Update, TOS novel: Triangle)
In the 2160s, there were five Joint Chiefs of Staff, representing the original five space fleets that made up the Federation Starfleet. The United Earth Space Probe Agency was responsible for exploration, the Andorian Imperial Guard specialized in the defense of the Federation's borders, the Tellar Space Administration handled operational support and supply, the Vulcan Space Council dealt with research and development and administration, and the Alpha Centauri Space Research Council provided research, funding, resources, logistical and administrative support. (ENT - Rise of the Federation novel: A Choice of Futures)
Starfleet Joint Chiefs of Staff
- Admiral Samuel Gardner - Chief of Staff of the UESPA (Retired, 2165)
- Admiral Thy'lek Shran - Chief of Staff of the Andorian Guard
- Admiral Mov chim Flar - Chief of Staff of the Tellar Space Administration
- Fleet Commander T'Viri - Chief of Staff of the Vulcan Space Council
- Admiral Alexis Osman - Chief of Staff of the Alpha Centauri Space Research Council
- Admiral Zenohr - Chief of Staff of Rigelian Defense Forces
- Chiefs of Staff for the Federation Starfleet
- Admiral Jonathan Archer (2165  - 1 January 2169 )
- Fleet Admiral Marcus van Diemen (at least 2240  - 2240 )
- Fleet Admiral Arthur Mason (at least 2269  - )
- Fleet Admiral Dai Mehkan (at least 2276  - )
- Fleet Admiral Harold Morrow (at least 2273  - 2285 )
- Fleet Admiral Robert Bennett (at least 2287  - )
- Fleet Admiral Les Landau (at least 2345  - )
- Fleet Admiral Gene Roddenberry (at least 2363  - at least 2375 )
- This title is sometimes confused with Commander-in-Chief of the Federation Starfleet (The C-in-C) and Commanding Officer, Starfleet Command (Commander, Starfleet), both of which are separate titles.
|Chiefs of Staff for the Federation Starfleet|
|Jonathan Archer • Arthur Mason • Dai Mehkan • Marcus van Diemen • Harold Morrow • Robert Bennett • Les Landau • Gene Roddenberry|
- ENT episode: "In a Mirror, Darkly"
- TOS novel: The Final Reflection
- TOS comics: "The Key Collection, Volume 1", "The Key Collection, Volume 2"
- TOS novel: Swordhunt
- FASA RPG module: Star Trek IV Sourcebook Update
- TOS movie: Star Trek V: The Final Frontier
- TNG episode: "Night Terrors"
- TNG episode: "Encounter at Farpoint"
- DS9 episode: "The Dogs of War"