Barrett won the award for World Rugby Player of the Year, later in the year, beating teammate Dane Coles to the award and becoming the next All Blacks player after Dan Carter to win that award. Barrett's 95-meter individual try against France in New Zealand's final match for the year saw Barrett overtake Ben Smith as the second to highest try scorer in the All Blacks for the year, scoring 9 tries throughout the calendar year, having doubled his career total. Barrett finished behind winger Israel Dagg, who scored 10 tries that year. Barrett played in most Hurricanes fixtures, during the 2017 Super Rugby season, but lent his kicking duties to younger brother, Jordie Barrett, during the season due to a leg problem. Despite this, Barrett still scored 58 points in the season. Barrett's discipline was also notably off, with Barrett ending the season as the most-carded player of the year. Barrett received four yellow cards, as well as a red card during the season. Barrett earned this red card, which was the first of his career, for being awarded two yellow cards against the Waratahs, having performed a deliberate knock-down and an offside against the Waratahs. Barrett was selected for the All Blacks' 33-man squad to face Manu Samoa and the British and Irish Lions in 2017. His brothers Scott and fellow Hurricane Jordie were selected too. This meant the Barrett family were the first to have three siblings selected for the same All Blacks squad. Barrett scored 24 points including two tries in his 50th test match, against Samoa, on 16 June 2017, which was also his brother Jordie's debut. Although Beauden and Jordie were not on the pitch at the same time, Scott shared game time with both of them. Barrett went on to score 41 points in the three tests against the British and Irish Lions, being the highest points scorer of the series. The All Blacks drew the series with the Lions, with Barrett missing three of his ten kicks during the second test of the series. Barrett was retained as a regular starter for the 2017 Rugby Championship, despite calls from the public to replace Barrett with outstanding Highlanders first-five Lima Sopoaga. Barrett was named as the All Black Vice-Captain, for the rest of 2017, replacing Ben Smith who took a sabbatical leave. In the final match of the Rugby Championship against South Africa, Barrett was subbed off after only 33 minutes for a concussion test, being replaced by Lima Sopoaga.