Captain's dining room
The captain's dining room or captain's mess was an area aboard Starfleet vessels specifically designed for personal use by the captain in order to entertain guests and eat meals in private. It was generally equipped with food service by means of a kitchen, galley, or replicators. The mess sometimes included the services of a steward, who brought the meals and drinks to the captain's table.

The  had a captain's dining room just off of the ship's mess hall. It was served by the ship's chef. On , Captain Jonathan Archer often enjoyed a meal with two or three of his senior officers, T'Pol, , and Travis Mayweather, in the captain's mess. () The captain's mess was also used for official dinners such as with Vulcan Captain Vanik in 2151. () Tucker also dined with Captain Hernandez in the captain's mess aboard  while he was briefly assigned to that vessel. ()

On  starships, the captain's mess was on Deck 2. It was equipped with a large buffet-style table. ()

Some  ships had a captain's dining room directly behind the mess hall, cabin 125-A on Deck 2. During the 's first months in the Delta Quadrant, Neelix converted the captain's dining room into a kitchen area, much to Captain Kathryn Janeway's initial dismay. ()

Other contexts
Aboard Romulan Warbirds such as the , the commander had a small dining room near the bridge, where she could dine with senior officers. ()

Aboard Annorax's Krenim weapon ship in an alternate timeline, there was also a small dining room where Annorax entertained Tom Paris and Chakotay with selections of cuisine from worlds that his temporal incursion had obliterated. ()
Spacecraft sections