SS Whatshan was a steam tug owned by Canadian Pacific Railway that operated on the Lower Arrow Lakes in British Columbia, Canada from 1909 to 1919.

[1] Although she was small, she proved to be the most suited to the Lower Arrow Lake run of all the tugs on the route from 1909 to 1961 because she had enough power to keep the channel open in bad weather when other ships became stranded in ice.

[3] An additional passenger cabin was added to the stern and Whatshan began to run three times a week between Robson and Edgewood in the extreme conditions of January 1916.

In 1919, Whatshan hauled railway ties to Robson and Nakusp, and was used when SS Minto was stuck in ice at Burton in December.

In July 1920, she was put up on the Nakusp shipyard ways and her machinery and boiler were shipped to Okanagan Landing for reuse.