Paul Williams (born 11 April 1985) is a professional rugby union referee from New Zealand who currently referees in the Super Rugby competition and in international test matches.

[1] Williams started refereeing in 2011 while still playing at halfback at club level and was appointed to the New Zealand High Performance referee squad in 2014.

[2] Williams refereed the 2016 World Rugby U20 Championship final between England and Ireland.

[3] In June 2017, Williams took charge of his first international test match, between Italy and Scotland in Singapore.

[4] In 2018, Williams refereed eight Super Rugby matches as well as three further Tier 1 tests.