Stuart W. Bowen, Jr. (born 1958 in Washington, D.C.), is an American lawyer who serves as the Special Inspector General for Iraq Reconstruction (SIGIR), a position he has held since October 2004. He previously served as the Inspector General for the Coalition Provisional Authority (CPA-IG), a position to which he was appointed in January 2004. Bowen's mission includes ensuring effective oversight of the $50 billion appropriated for Iraq's relief and reconstruction.

Born in Washington, D.C., Bowen holds a B.A. from the University of the South, attended Vanderbilt University Law School, and received a J.D. from St. Mary's University School of Law. Bowen spent four years on active duty as an intelligence officer in the U.S. Air Force, achieving the rank of Captain. Bowen is licensed by the Texas State Bar, Board Certified in Administrative Law by the Texas Board of Legal Specialization, and admitted to practice before the United States Supreme Court, a variety of lower Federal courts, and all Texas state courts. From 1992 to 1994, Bowen served as an Assistant Attorney General of Texas in administrative law litigation. And from 1991 to 1992, he served as Briefing Attorney to Texas Supreme Court Justice Raul Gonzalez. From 1994 to 2000, he held a variety of positions on Governor Bush's staff in Texas, including Deputy General Counsel, Deputy General Counsel for Litigation, and Assistant General Counsel. Bowen served as Counsel to the Bush-Cheney transition team, and was part of Bush's legal team challenging recounts in the 2000 election in Florida. Bowen served President Bush as Deputy Assistant to the President and Deputy Staff Secretary and Special Assistant to the President and Associate Counsel. He has been a partner at the law firm of Patton Boggs LLP, in its Washington, D.C. office.

As Special Inspector General for Iraq Reconstruction, Bowen is tasked with providing oversight for over $50 billion in funds for the Iraq reconstruction effort. His office, initially criticized for being too close to the Bush Administration to provide proper oversight for the reconstruction effort, has been highly critical of the management of the funds used in Iraq. His investigations have led to over 20 indictments and over 15 convictions. In addition to cases of fraud, Bowen has found cases where projects in Iraq were abandoned, erroneously slated as completed, or not sustained.