Calvyn Justus (born 14 December 1995) is a South African swimmer. He represented South Africa in the men's 4 × 200 metre freestyle relay at the 2016 Summer Olympics. He is an alumnus of Westville Boys' High School. In 2018, Justus secured a bronze medal in the 4x100 medley relay at the Commonwealth Games, along with teammates Chad Le Clos, Cameron van der Burgh and Brad Tandy.
Calvyn Justus at World Aquatics
Calvyn Justus at the Commonwealth Games Federation (archived)
Calvyn Justus at the Glasgow 2014 Commonwealth Games (archived)
Calvyn Justus at InterSportStats