Charles Walter "Bobby" Messenger (March 19, 1884 – July 10, 1951) was a professional baseball player. He was an outfielder for parts of four seasons (1909–11, 1914) with the Chicago White Sox and St. Louis Browns. For his career, he compiled a .172 batting average in 157 at-bats, with four runs batted in. He was born in Bangor, Maine and died in Bath, Maine at the age of 67.