Boult was born in Rotorua, New Zealand, in 1989. He grew up in Ōhope and Tauranga, and was educated at Otumoetai College. He is the younger brother of cricketer Jono Boult. Of Māori descent, Boult affiliates to the Ngāi Tahu, Ngāti Porou and Ngāi Te Rangi iwi.
Boult made his first-class debut for the Northern Districts in 2007. He was selected for the New Zealand Under-19 team for the 2008 ICC Under-19 Cricket World Cup, where he was the third-leading wicket-taker with 11 wickets.
Boult made his international debut for New Zealand in a Twenty20 International (T20I) against Australia in February 2013. He made his Test debut against the West Indies in December 2011, and his One Day International (ODI) debut against Sri Lanka in July 2012.
Boult has played 129 ODIs for New Zealand, taking 208 wickets at an average of 24.25. He is the joint-leading wicket-taker for New Zealand in ODIs, alongside Tim Southee. Boult's best bowling figures in ODIs are 7 wickets for 34 runs, which he took against Pakistan in 2015.
Boult has played 66 T20Is for New Zealand, taking 87 wickets at an average of 21.00. He is the second-leading wicket-taker for New Zealand in T20Is, behind Tim Southee. Boult's best bowling figures in T20Is are 5 wickets for 25 runs, which he took against Australia in 2018.
Boult has played 77 Tests for New Zealand, taking 317 wickets at an average of 26.61. He is the ninth-leading wicket-taker for New Zealand in Tests. Boult's best bowling figures in Tests are 10 wickets for 80 runs, which he took against Bangladesh in 2017.
Boult has captained New Zealand in one T20I, against Bangladesh in 2021.
Boult has been involved in a few controversies throughout his career. In 2015, he was fined for using inappropriate language on the field. In 2017, he was fined for throwing the ball at a batsman. And in 2019, he was criticized for his comments about the International Cricket Council's (ICC) decision to change the rules of the game.
Boult is married to Gert Smith, and they have three children. He is a passionate golfer and fisherman.
Trent Boult is one of the best bowlers in the world, and he has been a key member of the New Zealand team for over a decade. He is a swing bowler who can bowl at speeds of up to 150 km/h. Boult is also a very good fielder,