The Starfleet Officer's Lounge was a lounge whose usual clientèle were Starfleet senior officers. The bar was situated on or near Earth and was under the jurisdiction of the United Federation of Planets, bearing a Federation symbol on its entry door, an access point that was serviced by a turbolift. The lounge had two rooms: a main room for communing, and an entry room that incorporated a desk and the aforementioned door.
In 2285, Fleet Admiral Harry Morrow and Rear Admiral James T. Kirk had a discussion in the Starfleet Officer's Lounge, during which Morrow denied Kirk permission to take the USS Enterprise on a return voyage to the Genesis Planet. In the entry room, Kirk decided to head back to the planet even without having gained Morrow's approval to do so. (Star Trek III: The Search for Spock)