Wenonah was a sidewheel steamship, built by Alexander Peter Cockburn, on Lake Muskoka, in 1866.

She carried passengers, mail and freight, and towed logs for the lumber industry, mainly on a cluster of connected lakes that covered much of the county of Muskoka, Ontario, Canada.

According to the Dictionary of Canadian Biography, "[by] the spring of 1869 he had induced the Ontario government to build a lock on the Indian River at Port Carling and a canal at Port Sandfield, to allow steamers to extend their runs to lakes Rosseau and Joseph."

Cockburn also played a role in passing legislation to have rail service extended to Gravenhurst, one of the other ports served by the Muskoka steamships.

[3] In 2002 a modern excursion vessel, the Wenonah II, was constructed to give passengers the look and feel of a traditional Muskoka Steamship.