|Intro||South African swimmer|
14 December 1995
, Johannesburg, City of Johannesburg Metropolitan Municipality, Gauteng, South Africa
Calvyn Justus (born 14 December 1995) is a South African swimmer. He competed in the men’s 4 × 200 metre freestyle relay event at the 2016 Summer Olympics. He is an alumnus of Westville Boys’ High School. In 2018, Justus placed third in the 4×100 medley relay at the Commonwealth Games, along with teammates Chad Le Clos, Cameron van der Burgh and Brad Tandy.