The Haven Sector was a sector of space on the edge of the Solarian League, centered around the Haven System and dominated by the Republic of Haven, but also included the Manticoran Alliance.
The definition was mainly used by Solarians, who put it in the neighborhood of the "Silesian Sector". (HH9)
Joan Huertes was the Interstellar News Service's anchor for the Haven Sector around 1912 PD. (HH8)