Louis Frolla was a clergyman and writer in Monégasque, the national language of the Principality of Monaco.
He was notably the author of a Monégasque Grammar (1960) through the medium of French and a Monégasque-French Dictionary (1963). These works were much later reissued by the Comité National des Traditions Monégasques.
A French-Monégasque Dictionary, by Louis Barral and Suzanne Simone, complementing Frolla's edition, was issued in 1983.