Warren C. Philbrook (November 30, 1857 – May 31, 1933) was a justice of the Maine Supreme Judicial Court and Attorney General of Maine. A Republican, Philbrook served in a variety of political, legal, and judicial roles throughout the U.S. State of Maine throughout his career. Philbrook was a Freemason and a member of the Knights of Pythias, where he served as Chancellor Commander of Maine.