| Date | Person | Description |
|---|---|---|
| 1787 – 1790 | Abramsperg, Antoni | Teacher of architecture in Mstsislaw |
| de Abreu, Sebastião | Occupied himself with philosophy, moral theology in Évora | |
| Agosti, Joseph | Teacher of moral theology in Fidenza | |
| d'Aix, François | Occupied himself with mathematics, astronomy | |
| Aleni, Giulio | Aleni studied astronomy in Rome under Clavius | |
| de Almeida, José Bernardo | Occupied himself with mathematics, astronomy, astronomical observations, medicine, pharmaceutics | |
| 1773 – 1781 | von Ambschell, Anton | Teacher of physics in Ljubljana |
| 1773 – 1784 | von Ambschell, Anton | Teacher of mathematics, physics in Ljubljana |
| von Ambschell, Anton | Teacher of physics, mechanics in Vienna | |
| Angiolini, Gaetano |
Studied theology, architecture, painting in Verona
After 1773 |
|
| 1797 – 1801 | Angiolini, Gaetano | Teacher of architecture in Vitebsk |
| von Apfaltern, Leopold | Teacher of mathematics, mechanics in Klagenfurt | |
| Aquino, Jean | Teacher of philosophy, moral theology, scholastic theology in Naples | |
| 1768 – 1769 | Arakiełowicz, Grzegorz | Teacher of moral theology in Kremenets |
| Arakiełowicz, Grzegorz | Occupied himself with physics, astronomy | |
| Aranha, Silvestre | Teacher of philosophy, moral theology, scripture in Coimbra | |
| 1739 – 1741 | Arena, Filippo | Teacher of mathematics, physics in Caltagirone |
| 1741 – 1747 | Arena, Filippo | Teacher of mathematics, physics in Valletta |
| 1747 – 1765 | Arena, Filippo | Teacher of mathematics, physics in Palermo |
| Arzet, Andreas | Teacher of rhetoric, mathematics, moral theology |