Elwy McMurran Yost, CM (July 10, 1925 – July 21, 2011) was a Canadian television host, best known for hosting CBC Television's weekday Passport to Adventure series from 1965 to 1967, TVOntario's weekday Magic Shadows, from 1974 until the mid-1980s, and Saturday Night at the Movies from 1974 to 1999.