TSS Hantonia was a passenger vessel built for the London and South Western Railway in 1911.

[1] The ship was built by Fairfield Govan and launched on 23 December 1911 as Louvima, but in January 1912 renamed Hantonia.

With her sister ship Normannia they entered service between Southampton and Le Havre.

They were the first cross-channel steamers to be fitted with single-reduction geared Parsons' turbines, which gave the vessels a speed of over 20 knots but also cut down on the vibration experienced by cross-Channel passengers.

In 1939 Hantonia was requisitioned for a second time by the Admiralty and transported troops between Folkestone and Calais until January 1940.