Edwin Parker "Cy" Twombly (June 15, 1897 – December 3, 1974) was an American right-handed pitcher in Major League Baseball who appeared in seven games for the 1921 Chicago White Sox.
Born in Groveland, Massachusetts, he attended Lehigh University and Springfield College.
He was a swim coach and later Athletic Director of Washington & Lee University in Lexington, Virginia in the late 1950s and early 1960s.