Gavin Thornbury (born 19 October 1993) is an Irish rugby union player who plays as a lock for Northampton Saints in the Gallagher Premiership.
Having completed three years in the Leinster Academy upon leaving Blackrock College, Thornbury earned a professional development contract for the 2015–16 season.
This earned Thornbury a call-up to Wanganui provincial representative team, who play in the Heartland Championship - the tier below New Zealand's Mitre 10 Cup and, in October 2016, Thornbury helped Wanganui win the Meads Cup.
[2] Thornbury returned to Ireland and joined western province and then-defending Pro14 champions Connacht on a two-year contract in April 2017.
[3] On 26 September 2024, Thornbury would move to English side Northampton Saints on a short-term deal as injury cover in the Gallagher Premiership for the 2024-25 season.