Willi Heinz (born 24 November 1986) is a professional rugby union player who currently plays as a scrum-half for Canterbury in the Bunnings NPC.

[2] On 24 February 2015, English Premiership club Gloucester Rugby announced his signing for the start of the 2015–16 season.

[5] After arriving back in New Zealand, Heinz played for his local club Burnside RFC and rejoined Canterbury for the 2022 Bunnings NPC.

[11] In August 2019, he was selected as the starting scrum-half and vice-captain for England's first Rugby World Cup warm-up match against Wales.

[13] This biographical article relating to New Zealand rugby union, about a person born in the 1980s, is a stub.