The AQUILA LEGIS is the first and premier fraternity of the Ateneo De Manila School of Law. The fraternity was founded by 21 junior and senior students in 1949 becoming the first fraternity in the Philippines with a Latin name. Aquila Legis in English means "Eagle of the Law", but is more commonly interpreted as "Legal Eagle". Through six decades, the fraternity has inducted over 1500 members, 90% of whom are members of the Philippine Bar and include Cabinet Secretaries, Congressmen, Justices, and Ambassadors. The academic excellence required of every Aquilan has produced over 40 lawyers who reached the Top Ten of the Bar Examinations, four of whom placed number one namely: Vicente Solis, Virgilio Gesmundo, Gregorio Batillier Jr., and Januario Soller Jr. It has been the policy of the Ateneo De Manila University School of Law not to recognize fraternities and sororities but this has not deterred the resident and alumni Aquilans from being actively involved in the school's many endeavors. The fraternity does not make any apologies for its strong fraternal bonds, which on more than one occasion has been accused of causing factionalism on campus. In truth, its traditions are marked with tolerance and humaneness. For the fraternity has devoted itself not only to the good and interest/s of its members, but to continuous and dedicated service to the community. Its record speaks for itself and, despite undeserved affronts, cannot be overcome. Through the years, the Aquila Legis has lived up to its ideals and has evolved, as originally envisioned, into a potent agent for social reform. These ideals are fleshed out in their deeds and noble dreams. Some of the prominent members of the Aquila Legis include:

Judiciary

Supreme Court Justice Leo Medialdea (+), Court of Appeals Justice Jose Sabio, Court of Appeals Justice Marian Del Castillo, Court of Appeals Justice Hector Hofilena (retired), Court of Appeals Justice Jorge Imperial (retired), Court of Appeals Justice Ricky Rosario, Court of Appeals Justice Ramon Garcia, Court of Appeals Justice Roberto Barrios, Court of Appeals Justice Frederico Moreno (+), Court of Appeals Justice Eriberto Rosario (retired), Court of Appeals Justice Luis Javellana (+)

Executive

Former Vice President Teofisto Guingona, Department of Budget and Management Secretary Rolando "Nonoy" Andaya, Presidential Spokesman Ignacio "Toting" Bunye, Chief Presidential Legal Counsel Sergio "Serge" Apostol, Former Bangko Sentral ng Pilipinas Governor Gabriel Singson, NLRC Chairman George Nograles, Former Press Secretary Atty. Ricardo "Dong" Puno, Former Chief of the Presidential Legislative Liaison Office Jaime Policarpio, SEC Commissioner Thaddeus "Tady" Venturanza, GRP Panel Chairperson Secretary Silvestre Bello III, Department of Finance Undersecretary Gaudencio Mendoza, Department of Agrarian Reform Undersecretary Efren Moncupa, NAPOCOR President Cyril Del Callar, Former Department of Labor and Employment Secretary Bienvenido Laguesma, La Union Governor Victor F. Ortega, Zamboanga Del Norte Governor Roldan Dalman, Masbate Vice Governor Vince Revil, Department of Justice Undersecretary Joe Calida, Department of Foreign Affairs Undersecretary Frank Ebdalin, Department of Interior and Local Government Undersecretary Marius Corpus, Former Bureau of Internal Revenue Commissioner Rene Banez, Former Quezon Governor Wilfredo Enverga, Former NLRC Commissioner Bert Quimpo, Ambassador Eloy Bello, Ambasssador Victor Garcia III, Former Ambassador to the United States Raul C. Rabe, Former League of Cities President Francis Tolentino, Tagbilaran City Mayor Junjun Lim, Mayor Tito Purisima, Mayor Lazaro Ballesta, Mayor Romulo De Grano, Mayor Arleigh Sitoy, Mayor Ramon Calo.

Legislature

Former Senate President Ernesto Maceda, Majority Floor Leader Prospero Nograles, Congressman Tony Roman, Congressman Raul Del Mar, Congressman Emilio "Jun" Abaya, Congressman Antonio Cerilles, Congressman Florencio Noel, Congressman Neptali "Boyet" Gonzales Jr., Congressman Didagen "Digs" Dilangalen, Congressman Adam Jala, Congressman Antonio Diaz, Congressman Edgar Valdez, Former Congressman Emigdio S. Tanjuatco, Jr., Former Congressman Sandy Urro, Former Congressman Raul Desembrana, Former Congressman Tony Dequina, Former Congressman Gigi Aggabao, House of Representatives Deputy Secretary General Artemio Adasa Jr.