Clifford John Ronning (born October 1, 1965) is a retired Canadian professional ice hockey forward. He was selected by the St. Louis Blues in the 7th round of the 1984 NHL Entry Draft, 134th overall. During an NHL career that spanned 18 years, Ronning played for the Blues, Vancouver Canucks, Phoenix Coyotes, Nashville Predators, Los Angeles Kings, Minnesota Wild and New York Islanders.

Prior to being drafted, Ronning played in the Western Hockey League for the New Westminster Bruins, displaying an excellent scoring touch. In 1983–84, Ronning's draft year, he posted 136 points in 71 games, earning the Jim Piggott Memorial Trophy as the league's rookie of the year. Due to his small stature (Ronning was 5'8"), he was not drafted until the seventh round, when the St. Louis Blues picked him 134th overall. The next season, he returned to New Westminster and accumulated an astonishing 197 points, establishing a WHL record (he was later surpassed by Rob Brown's 212-point season in 1986–87). Accordingly, Ronning earned the WHL Most Valuable Player Award and the Bob Clarke Trophy as the league's leading scorer. Recording just 20 penalty minutes, he was also named the Most Sportsmanlike Player.