George Elvin Walberg (July 27, 1896 – October 27, 1978) was an American professional baseball player. He played in Major League Baseball as a left-handed pitcher from 1923 through 1937, most notably as a member of the Philadelphia Athletics dynasty that won three consecutive American League pennants from 1929 to 1931, along with the World Series in 1929 and 1930. Walberg also pitched for the New York Giants and the Boston Red Sox.