The Casamonica clan is an Italian criminal organization present in Rome and operating in the area of the Castelli Romani and the Lazio coast [it].
The traditional cornerstones of the mafia clan are the areas located in the south-eastern outskirts of Rome: Romanina, Anagnina, Porta Furba, Tuscolano, Spinaceto, and further south, in other municipalities up to Frascati and Monte Compatri.
According to the Anti-Mafia Investigation Directorate (DIA), the Casamonica clan is the most powerful and rooted criminal structure in the Region of Lazio, with estimated assets amounting to 90 million euros.
Illegally built villas in the Quadraro district were demolished in 2018 during the incumbency of Virginia Raggi as mayor of Rome.
In June 2022, eleven clan members were facing trial over electricity theft.