This Article deals with Lomonosov’s exceptional relations with Latin. Lomonosov (1711-1765) had become an excellent Latinist thanks to his studying humanities in the Muscovite ecclesiastical academy and his stay as a student in germany. He took advantage of this competence in the scientific field in the Imperial academy of sciences in saint-Petersburg, in a time when the use of scientific Latin was the rule ; but he took profit too of his Latin in his philological and literary works which are nourished with Latin culture. However Lomonosov strove all his life long to create a new russian language, both scientific and literary, which could compete with this Latin model he considered as an essential reference. thus Lomonosov remains an except...