The Rigel Queen CTSS-194 was a Federation civilian starliner starship that was in use during the 23rd century.
In the 2260s decade, it made regular journeys between the Federation Orion colony and Rigel colony. The ship was fitted with both regular civilian transporters and a VIP transporter.
In the year 2269, some time after Stardate 5862.5, Mr. Spock booked passage onboard the Rigel Queen to travel to the Rigel Colony after taking leave of absence to visit Leila Kalomi, who requested his aid on a personal matter. (TOS comic: "The Hollow Man")