Dayle Haddon (May 26, 1948 – December 27, 2024) was a Canadian model and actress, known for promoting anti-aging products manufactured by L'Oréal.

Haddon also served as a wellness contributor to CBS News where she appeared regularly on The Early Show at the turn of the 21st century.

[1] As a child, she was enrolled in dancing classes to develop her physique, and she performed well enough to become a member of Les Grands Ballets Canadiens at 13.

[8] Her best known roles were in Madame Claude (1977),[citation needed] and North Dallas Forty (1979) opposite actor Nick Nolte.

[12] According to The New York Times, Dayle had "shattered age taboos" with her multiyear contracts with L'Oréal and Estée Lauder, among other companies.

[15] Haddon was married to French businessman Glenn Souham, who died on 24 September 1986 in Paris, after he was gunned down, most likely by Soviet agents.

"[22] Through WomenOne, Haddon had partnered with Free The Children, an international charity, to provide scholarships for girls’ education in Kenya.

[23] Haddon also appeared as the face of a line of socially and environmentally responsible accessories launched by Me to We, Free The Children's partner organization.

[24] On December 27, 2024, first responders found her unresponsive in a carriage house in Solebury Township, Pennsylvania, which was a property owned by her daughter Ryan and son-in-law Marc Blucas.