Kathy Tremblay (born 16 June 1982) is a professional Canadian triathlete and member of the National Team.Tremblay placed 29th in the 2008 Summer Olympics.
Tremblay holds a degree in PR and Management (Relations industrielles, relations publiques et création d'entreprises).
She lives in Montreal and is coached by her boyfriend David-James Taché.Along with fellow Canadian triathlete Paula Findlay, Tremblay qualified for the triathlon event at the 2012 Summer Olympics.