Lyall Austin Dagg (July 27, 1929 – May 14, 1975) was a Canadian curler and World Champion.

[7] Dagg was a former printer, journalist, business editor and public relations director.

He was first employed as a printer, and became a write-reporter and business editor for the Vancouver News-Herald.

In 1955 he joined the public relations department for Crown Zellerbach Canada, later becoming director of public relations, and then manager of marketing services in Richmond, British Columbia and then in Kelowna in 1973.

Dagg was also involved in the BC Centennial Committee, the Festival of Forestry, the Vancouver Board of Trade, the BC Heart Foundation and the Kelowna Chamber of Commerce.