Martin Edward Whelan III (born July 26, 1960) is an American lawyer, legal activist and political commentator. Whelan's legal career included clerking for Supreme Court Justice Antonin Scalia and serving as a deputy assistant attorney general during the George W. Bush administration. Since 2004, he has served as the president of the Ethics and Public Policy Center, a conservative think tank "dedicated to applying the Judeo-Christian moral tradition to critical issues of public policy".