Swimming at the 2018 Commonwealth Games was the 21st appearance of Swimming at the Commonwealth Games. The swimming events at the 2018 Commonwealth Games were held at the Gold Coast Aquatic Centre in the Gold Coast, Australia from 5 to 10 April. A total of 50 events were scheduled. Of the 50, 38 were for able-bodied athletes (19 per gender). The remaining 12 were for para sport athletes (six per gender).
There are 47 participating nations in swimming with a total of 363 athletes. The number of athletes a nation entered is in parentheses beside the name of the country.