Calatia was an ancient town of Campania, southern Italy, c. 10 km southeast of Capua, on the Via Appia, near the point where the Via Popillia branches off from it. It is represented by the church of Giacomo alle Galazze. The Via Appia here, as at Capua, abandons its former SE direction for a length of 2,000 Oscan feet (500 m), for which it runs due east and then resumes its course SE. Ruins include remains of the walls (with sector from the Samnite age, in tuff, and others from the Sulla period) and the pre-Roman necropolis was partially excavated in 1882. The ten shafts lined with slabs of tuff which may have been the approaches to tombs or may have served as wells.