Willem Hendrik Jacques "Sheep" du Plessis (born 12 August 1993) is a South African rugby union player.

[4] He also started the game the following week in an equally impressive 89–10 victory against the Griffons,[5] a match that saw him score his first try, dotting down shortly after half-time.

[10][11] Shortly before the 2015 Super Rugby season, the Bulls announced that Du Plessis would leave after the 2015 Currie Cup Premier Division to take up a two-year contract with French Top 14 side Montpellier.

[13] Du Plessis was included the South Africa Under-20 squad for the 2013 IRB Junior World Championship.

[14] In May 2014, Du Plessis was one of eight uncapped players that were called up to a Springbok training camp prior to the 2014 mid-year rugby union tests.