John Rikard Dempsey (born September 13, 1949) is an American former professional baseball player. He played for 24 seasons as a catcher in Major League Baseball from 1969 to 1992, most prominently for the Baltimore Orioles where he played for 10 years and was a member of the 1983 World Series winning team. Dempsey was known for being one of the best defensive catchers of his era. In 1997, he was inducted into the Baltimore Orioles Hall of Fame.