Johannes Frederick 'Jacques' Vermeulen (born 8 February 1995) is a South African rugby union player for English club Exeter Chiefs.
Vermeulen represented Western Province from as early as primary school level, when he played at the Under-13 Craven Week competition in 2008.
Despite not initially being included in the South Africa Under-20 squad for the 2014 IRB Junior World Championship, an injury to Dan du Preez led to Vermeulen being called up.
[10] Vermeulen returned to domestic action to represent the Western Province U21s in the 2014 Under-21 Provincial Championship, despite still being eligible for their Under=19 side.
He made his domestic first class debut on 21 March 2015, starting their match against the Boland Cavaliers in Caledon and helping them to a 25–10 victory.