The Ravinok was a Cardassian prison transport that was in service with the Cardassian military in the mid-24th century. Ravinok was under the general command of Dukat, and was partially composed of a uridium alloy.
In 2366, the Ravinok and its crew of 18 were assigned to transport 32 Bajoran prisoners to a labor camp. En route, it was scheduled to rendezvous with a freighter, bound for Lissepia, to transport two civilians that were also aboard the ship, Tora Naprem and Tora Ziyal.
The transport was attacked by two Breen warships and forced to crash-land on Dozaria. Twelve of the persons aboard died in the crash, while the rest were forced to work in a nearby Breen dilithium mine.
The Cardassian Central Command never learned what had happened to the Ravinok, until 2372 when Bajoran smuggler Razka Karn obtained a fragment of the transport's forward sensor array. Major Kira Nerys mounted an expedition to find the transport, since her friend Lorit Akrem was one of the prisoners. Legate Dukat joined her, to find Tora Naprem and his daughter Ziyal. (DS9: "Indiscretion")