Aboard Federation starships, the captain's ready room is the personal office of the vessel's commanding officer. From the ready room, the captain could work on administrative tasks, hold private discussions and receive classified communiques.
- The ready room was introduced in Star Trek: The Next Generation, and each series thereafter depicted one. The 22nd century NX-class vessels had ready rooms, despite there being none aboard any known 23rd century ship.
Excelsior-class starships, like the USS Okinawa also possessed ready rooms, at least by the 24th century. Certain Klingon vessels were also so equipped. (DS9: "Paradise Lost", "Soldiers of the Empire", "Sons and Daughters", "Once More Unto the Breach")
Aboard the USS Pendragon, Captain Timothy Sinclair kept numerous personal items in his ready room, including many books, photographs and model starships. Above the sofa, there was a painting of a lighthouse battered by a raging sea. (Star Trek: Pendragon: "Restoration", "Exile")
Norexan-class starships, like the RIS Bouteina, possessed ready rooms, which were located port of the turbolift leading to the bridge. The ready room was spacious enough to expose all the Federation and Romulan box art of World of Warcraft's first two volumes on its walls. Also, the Bouteina's ready room contained the largest collection of World of Warcrack items in the Romulan Star Empire until these items were transferred to the World of Warcraft Hall of Fame on Rator III. (RIS Bouteina: "Merry Christmas")