| Date | Person | Description |
|---|---|---|
| 1787 – 1790 | Abramsperg, Antoni | Teacher of architecture in Mstsislaw |
| 1783 | Abramsperg, Antoni | Teacher of mathematics, French, German in Mstsislaw |
| 1784 – 1785 | Abramsperg, Antoni | Teacher of mathematics, French, German in Vitebsk |
| 1785 – 1786 | Abramsperg, Antoni | Teacher of mathematics, French, German in Daugavpils |
| von Ambschell, Anton | Teacher of physics, mechanics in Vienna | |
| 1750 – 1793 | Amiot, Jean Joseph-Marie | Occupied himself with astronomical observations, magnetism in China |
| 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 | |
| Béraud, Laurent | Occupied himself with astronomical observations, magnetism, meteorology, combustion in Lyon | |
| du Breuil, Jean | Occupied himself with architecture | |
| Cabeo, Niccolò | Occupied himself with magnetism | |
| Casati, Paolo | Occupied himself with mechanics, hydrostatics | |
| Castel, Louis-Bertrand | Occupied himself with mathematics, physics, optics | |
| Cibot, Pierre-Martial | Occupied himself with astronomy, mechanics, medicine, chemistry, botany, geology, mineralogy, zoology, Chinese writing system | |
| Ciermans, Jan | Part of the Portuguese army of architecture, engineering | |
| 1574 | Clavius, Christoph | Editor of mathematics, optics in Messina |
| 1808 – 1820 | Condrau, Jakub | Teacher of physics, mechanics, botany, zoology, higher mathematics in Polotsk |
| Cysat, Johann Baptista | Occupied himself with architecture, astronomical observations | |
| 1810 – 1811 | Cytowicz, Józef | Teacher of architecture, Russian in Polotsk |