Rhett Purcell (born 6 February 1996) is a New Zealand tennis player, although he represented the United Kingdom through parental descent from the start of his junior career in 2010 until mid-October 2017. Purcell has a career high ATP singles ranking of 749, achieved on 10 September 2018, and a best doubles ranking of 382, reached on 19 August 2019. He made his debut for New Zealand at the Davis Cup in September 2019, winning his first match.