Robert Kitridge Wicker (May 25, 1877 – January 22, 1955) was a professional baseball player who was a pitcher in the Major Leagues from 1901 to 1906. He would play for the St. Louis Cardinals, Chicago Cubs, and Cincinnati Reds. Wicker started his professional career in 1900. With Dayton of the Interstate League, he went 21–9. He joined the Cardinals the following season. In early 1903, he was traded to the Cubs, where he won 20 games for the only time in the majors.