Thurii (/ˈθʊərɪaɪ/; Ancient Greek: Θούριοι), called also by some Latin writers Thurium (compare Θούριον in Ptolemy), for a time also Copia and Copiae, was a city of Magna Graecia, situated on the Tarentine gulf, within a short distance of the site of Sybaris, whose place it may be considered as having taken. The ruins of the city can be found in the Sybaris archaeological park near Sibari in the Province of Cosenza, Calabria, Italy.