Vincenzo de Vit (b. Mestrina, near Padua, 10 July 1810; d. Domodossola, 18 August 1892) was an Italian Latin scholar and historian of Ancient Rome.

He was thus advancing in the path of ecclesiastical honours, but under the influence of Antonio Rosmini-Serbati he entered the latter's religious order, known as the Institute of Charity, in Stresa.

He likewise gave an exact digest of the authors of the Church Fathers, and accorded considerable space to inscriptions, which he also treated in special works.

De Vit undertook the Onomasticon, which he brought down to the beginning of the letter P. The "Lexicon" allows the restoration of the exact history of each word according to writers and periods.

According to de Vit the name Brittany was given to Armorica because some Brythons had established themselves there in the time of Julius Caesar, coming from the east bank of the Rhine.