Charles Joseph Sauriol, CM (May 3, 1904 – December 16, 1995) was a Canadian naturalist who was responsible for the preservation of many natural areas in Ontario and across Canada.

His father, Joseph Sauriol, had moved to Toronto in 1882 to work on a project that involved straightening the lower portion of the Don River.

He worked for 30 years as an advertising manager for French language publishing companies such as Poirier Bessette and Le Samedi.

The Association organized steam locomotive trips for the DVCA called The Conservation Special as fundraisers from 1951–1961.

These excursions attracted upwards of 1000 people and traveled to such destinations as Cobourg, Lindsay, and Niagara Falls.

Sauriol served on the MTRCA's executive committee and as chairman of the Conservation Areas Advisory Board.

During his time with the NCC, he was responsible for raising funds and acquiring natural areas across Canada.

He continued working as a consultant, lending his expertise to conservation authorities throughout Ontario with land acquisitions.

He frequently visited his property during the winter which he used as a retreat to write in his journal or create articles for the Cardinal.

In 1991 he helped to found the Todmorden Mills Wildflower Preserve which still maintains a small forested area in the Lower Don.

Starting in 1995, the MTRCA and the Oak Ridges Moraine Land Trust host the Charles Sauriol Environmental Dinner, an annual fundraising event.