The swimming competition at the 1963 Mediterranean Games was held in Naples, Italy.
Medallists
Men's events 100 m freestyle 56.3 58.2 58.4400 m freestyle 4:31.9 4:33.6 4:34.71500 m freestyle 17:59.3 18:16.7 18:18.7200 m backstroke 2:21.2 2:21.7 2:21.9200 m breaststroke 2:40.8 2:44.5 2:44.5200 m butterfly 2:18.7 2:20.3 2:20.94 × 200 m freestyle relay 8:28.3 8:28.5 8:41.94 × 100 m medley relay 4:13.2 4:15.1 4:17.1
Medal table
References Complete 1963 Mediterranean Games report released by the International Mediterranean Games Committee