Marius van der Westhuizen (born 6 January 1984) is a South African professional rugby union referee, currently on the Premier Panel of the South African Rugby Referees' Association.
[1][2] Van Der Westhuizen was born in Cape Town, South Africa.
In 2009, he became a member of SARRA's contenders squad and he took charge of matches in the Craven Week and Under-19 Provincial Championship competitions.
[6] Van Der Westhuizen became a referee on the IRB Sevens World Series circuit,[7] where he very quickly established himself as one of the top referees, being the man in charge of the 2013 Hong Kong Sevens final in just his third tournament.
[13] as well as at the 2014 IRB Junior World Championship, taking charge of three matches, including the 5th-place play-off semi-final between Australia and Samoa,[14] Van der Westhuizen refereed at the 2015 Tbilisi Cup to become the 69th test referee for South Africa.