| Jan du Preez | |
| Birth Name: | Jan Gysbert Hermanus du Preez |
| Birth Date: | 6 October 1930 |
| Birth Place: | Piketberg, South Africa |
| Height: | 1.83m |
| Weight: | 80kg |
| Ru Position: | Wing |
| Amatteam1: | Maties |
| Repteam1: | South Africa |
| Repyears1: | 1956 |
| Repcaps1: | 1 |
| Reppoints1: | 0 |
| Ru Province1: | Western Province |
| Ru Provinceyears1: | 1951–1958 |
| School: | Piketberg High School |
| University: | University of Stellenbosch |
Jan Gysbert Hermanus du Preez (born 6 October 1930) is a former South African rugby union player who made one Test match appearance in 1956.[1]
Du Preez was born in Piketberg and received his schooling at Piketberg High School. He then enrolled at Stellenbosch University to study for a BSc degree and later gained a doctorate in chemistry.[2]
While a student, du Preez began playing provincial rugby for Western Province as a centre, before moving to the wing.[3] His only Test appearance for South Africa came on the 1956 tour of Australia and New Zealand. He was selected to play in the first Test against the All Blacks at Carisbrook, Dunedin—a match that South Africa lost 10–6.[4]