Cynthia Chalk (née Jennings; December 9, 1913 – April 5, 2018) was a Canadian photographer.
She was born in Ottawa, Ontario. Chalk was a life member and fellow of the Montreal Camera Club; she co-edited the club's newsletter Cameragram and served as chair of the Nature division of the club. She served on the executives of the National Association for Photographic Arts, later the Canadian Association for Photographic Art, and the Photographic Society of America. Her work has appeared in Outdoors Canada and was included in the National Film Board of Canada exhibit "Photography 75" and in the National Collection of Nature Photographs.
- "Cynthia Chalk". National Gallery of Canada. Retrieved April 18, 2018.
- "Chalk, Cynthia". Canadian Women Artists History Initiative. Retrieved April 18, 2018.
- Barbara Burbank (2016-01-12). "Happy 103rd birthday". Tempo. Retrieved 2017-11-09.
- "Cynthia Chalk nee Jennings 19132018, death notice, Canada". 15 April 2018.