TS Duchess of Hamilton was a Clyde passenger excursion steamer, built in 1932 for the Caledonian Steam Packet Company.

Built to replace PS Juno at Ayr, she was a one-class vessel, carrying saloon class passengers only and had a service speed of around 18 knots.

She came under the control of British Railways in 1948, and in 1965 received new livery of a blue hull with red rampant lions on her funnels.

[4] Sold to the Reo-Stakis organisation as a night club/restaurant, she was moved to Ardrossan for modification, but the project failed and she was broken up, at Troon in 1974.

[4] After the war, she ran long distance excursions from Gourock to Campbeltown and later to Ayr, Arran and Inveraray as well.