John M. Most was an American sports announcer, known primarily as the raspy radio voice of the Boston Celtics of the National Basketball Association from 1953 to 1990.

"Havlicek stole the ball" is a quote by radio broadcaster Johnny Most, as a jubilant reaction to a steal made by the Boston Celtics' John Havlicek against the Philadelphia 76ers in the 1965 NBA Eastern Division championship game seven. Most's call of the play has been dubbed by the NBA as "the most famous radio call in basketball history".