The Griko people (Greek: Γκρίκο), also known as Grecanici in Calabria, are an ethnic Greek community of Southern Italy. They are found principally in the regions of Calabria and Apulia (peninsula of Salento). The Griko are believed to be remnants of the once large Ancient and Medieval Greek communities of Southern Italy (the ancient Magna Graecia region), although there is some dispute among scholars as to whether the Griko community is directly descended from Ancient Greeks, from more recent medieval migrations during the Byzantine period, or a combination of both.
A long-standing debate over the origin of the Griko dialect has produced two main theories about the origins of Griko. According to the first theory, developed by Giuseppe Morosi in 1870, Griko originated from the Hellenistic Koine when in the Byzantine era [...] waves of immigrants arrived from Greece to Salento. Some decades after Morosi, Gerhard Rohlfs, in the wake of Hatzidakis, claimed instead that Griko was a local variety evolved directly from the ancient Greek.