Rudolph Charles "Skel" Roach (born Rudolph Charles Weichbrodt, October 20, 1871 – March 9, 1958) was a baseball player and coach. He played professional baseball from 1895 to 1905, including one game in Major League Baseball with the Chicago Orphans on August 9, 1899. He was also a college baseball coach for the Lewis Institute (now part of Illinois Institute of Technology), the University of Michigan, and Indiana University. He later became an attorney practicing in the Chicago area.