| Date | Person | Description |
|---|---|---|
| Abad, Diego José | Teacher of philosophy, theology, literature | |
| 1787 – 1790 | Abramsperg, Antoni | Teacher of architecture in Mstsislaw |
| Adányi, András | Occupied himself with polemic theology, canon law, moral philosophy, scripture in Trnava | |
| d'Aix, François | Occupied himself with mathematics, astronomy | |
| 1751 | Alegre Capetillo, Francisco Javier | Teacher of literature in Mexico City |
| 1751 – 1752 | Alegre Capetillo, Francisco Javier | Teacher of literature in Veracruz |
| 1755 – 1763 | Alegre Capetillo, Francisco Javier | Teacher of literature in Havana |
| 1770 – | Alegre Capetillo, Francisco Javier | Teacher of mathematics, literature in Bologna |
| Aleni, Giulio | Aleni studied astronomy in Rome under Clavius | |
| de Almeida, José Bernardo | Occupied himself with mathematics, astronomy, astronomical observations, medicine, pharmaceutics | |
| von Ambschell, Anton | Teacher of physics, mechanics in Vienna | |
| 1750 – 1793 | Amiot, Jean Joseph-Marie | Occupied himself with astronomical observations, magnetism in China |
| 1711 – 1727 | Andrian, Karl | Occupied himself with philosophy, mathematics, canon law, cases of conscience in Trnava, Graz, Linz, Klagenfurt, Gorizia, Buda |
| 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 | |
| Arakiełowicz, Grzegorz | Occupied himself with physics, astronomy | |
| Aranha, Silvestre | Teacher of literature in Évora | |
| Aynscom, François-Xavier | Teacher of mathematics, literature in Antwerp | |
| Barthe, Bernard | Teacher of rhetoric, grammar, literature in Carcassonne, Puy, Cahors, Castres, Clermont, Mauriac, Alby |