M/S Sobieski was a Polish passenger ship built for the Polish Ocena Lines to replace the aging SS Kościuszko and SS Pulaski; a sister ship to the MS Chrobry. She was named in honour of the Polish king Jan III Sobieski.
The ship was used as a troopship in Operation Ariel and the Battle of Dakar. She was also used in transport of the 18th Division of the British Army to defend Singapore. At the end of the war she was sent to bring home the remnants of that division's Cambridgeshire Regiment that had survived captivity at the hands of the Japanese in Malaya and Thailand. (3) She also returned former Changi POWs from Singapore sailing vi Cape Town and docking at Southampton during a dockworkers strike. Disgusted, dismayed ex-POWs were forced to unload their own baggage, such as it was.