Charles Dewey "Lefty" Jamerson (January 26, 1900 – August 4, 1980) was a relief pitcher in Major League Baseball.

A native of Enfield, Illinois, Jamerson was a player whose major league career, statistically speaking, was only slightly different from that of Red Bluhm, Eddie Gaedel, or Moonlight Graham.

On August 16, 1924, Jamerson pitched for the Boston Red Sox against the St. Louis Browns at Fenway Park.

After his playing career ended, he served as the head football coach at the University of Memphis in 1942 and at Davidson College from 1948 to 1949.

This biographical article relating to an American baseball pitcher born in the 1900s is a stub.