Ralph "Sarge" Mitterling (April 19, 1890 – January 22, 1956) was an American football, basketball, and baseball player and coach.

He played Major League Baseball as an outfielder for the Philadelphia Athletics during the 1916 season.

He served in the US Army during World War I. Mitterling was the head football coach at Ursinus College from 1919 to 1920, at Susquehanna University in 1923, and at East Stroudsburg State Teachers College—now East Stroudsburg University of Pennsylvania—from 1926 to 1935, compiling a career college football record of 47–52–7.

Mitterling died on January 22, 1956, at Veteran's Hospital in the Oakland section of Pittsburgh, Pennsylvania.

This biographical article relating to an American baseball figure is a stub.