Squire has signed a deal with an undiscloses Japanese club who he will join following the showpiece tournament later this year.
Squire has 23 tests to his name and has blossomed into a star since joining the Highlanders in 2016, though he has faced time on the sideline through injury during his tenure in black.
Squire made his All Blacks debut in 2016 after joining the Highlanders and since the departure of longtime No 6 Jerome Kaino has been an All Black mainstay.
Squire joins an ever-growing list of All Black loose forwards shifting overseas after the World Cup.
Crusaders blindside flanker Jordan Taufua will join English Premiership club Leicester Tigers at the end of the year, and All Blacks captain and No 8 Kieran Read has indicated he will either retire or shift overseas after the World Cup.
Rugby World Cup City Guides – Oita:
Sign up to our mailing list here and we’ll keep you up to the minute with weekly updates from the world of rugby.