Clarence Dickson "Lefty" Russell (July 8, 1890 – January 22, 1962) was an American professional baseball player who played three seasons for the Philadelphia Athletics from through . He was on Athletics teams that won two World Series in 1910 and 1911, although according to the 1912 Reach guide he was "no use at all, owing to a bad arm" in 1911. He was born in Baltimore, Maryland and died there at the age of 71. His brother Allen Russell also played Major League Baseball.