A
- Abdul Kalam - Former President of India (St. Joseph's College, Tiruchirapalli, Tamilnadu, India)
- Tony Abbott - Australian Leader of the Opposition (St Ignatius' College, Riverview)
- Monir Fakhry Abdelnour - Egyptian Minister of Tourism (College de la Sainte Famille)
- Robert Abplanalp - inventor of aerosol valve and Founder of Precision Valve Corporation (Fordham Preparatory School)
- Edward Fenech Adami - Former President of Malta (St Aloysius' College)
- Héctor Aguilar Camín - Mexican writer, journalist and historian (Universidad Iberoamericana)
- Vijay Amrithraj (Tennis)and his brother Anand Amrithraj (Tennis) (Loyola College Chennai)
- José Antonio Aguirre - Basque president (University of Deusto)
- Carlos Alazraki - President and CEO, Alazraki & Asociados Publicidad agency (Universidad Iberoamericana)
- Alan Alda - American movie actor and TV star (Fordham University)
- Iyad Allawi - Iraqi politician (Baghdad College)
- Robert Altman - American film director (Rockhurst High School)
- Viswanathan Anand - Indian chess grandmaster (Loyola College)
- Ivo Andric - Yugoslavian author and Nobel laureate, Jesuit gymnasium in Travnik, Bosnia
- APO Hiking Society - Filipino singing group, Ateneo High School
- Benigno Aquino, Jr. - Philippine politician; studied at the Ateneo de Manila University
- Fr. Miguel Arranz, S.J. - Professor of Oriental Liturgy, Pontifical Oriental Institute and St. Petersburg Othodox Theological Academy (Collegium Russicum, Pontifical Oriental Institute)
- Guillermo Arriaga - Mexican screenwriter (Amores Perros), Universidad Iberoamericana
- Mike Arroyo - husband of Gloria Macapagal Arroyo (Ateneo de Manila University)
- Emilio Azcarraga Jean, President and Owner, Televisa (Universidad Iberoamericana)
Read more about this topic: List Of Alumni Of Jesuit Educational Institutions