Sigma Gamma Tau is the American honor society in Aerospace Engineering. It seeks to identify and recognize achievement and excellence in the Aerospace field. Sigma Gamma Tau's collegiate chapters elect annually to membership those students, alumni, and professionals who, by conscientious attention to their studies or professional duties, uphold this high standard for the betterment of their profession.
The objectives of Sigma Gamma Tau, as stated in the preamble of the society's national constitution, are: "to recognize and honor those individuals in the field of Aeronautics and Astronautics who have, through scholarship, integrity, and outstanding achievement, been a credit to their profession. The society seeks to foster a high standard of ethics and professional practice and create a spirit of loyalty and fellowship, particularly among students of Aerospace Engineering."