Mattea Hahn

Admiral Mattea Hahn was a Starfleet officer who served in the role as Chief of Starfleet Operations in the 2260s.

In 2265, in the Crucible continuity, Hahn ordered the USS Enterprise to proceed to the Antares Ship Yards from Starbase 20, so that the vessel could undergo a minor refit similar to the ones performed on the USS Constellation and USS Defiant. (TOS novel: Crucible: The Fire and the Rose).