The 2016 end-of-year rugby union internationals, also known as the 2016 Autumn Internationals in the Northern Hemisphere, were a series of international rugby union matches predominantly played between the visiting Southern Hemisphere countries: Argentina, Australia, New Zealand and South Africa – and the European sides: England, France, Ireland, Italy, Scotland and Wales.
The 2016 November international window saw 37 international matches take place, with an additional seven international matches taking place outside the allocated three week window. 27 nations across all three tiers competed in at least one test, with a record 27 matches including a tier 2 or tier 3 side, seven of which were a tier 1 v tier 2 fixture, as World Rugby tried to build on the tier 2 success in the 2015 Rugby World Cup, moving towards the 2019 Rugby World Cup. Coinciding with the international window, the 2016 Cup of Nations took place, bringing the total number of matches up to 51 for 31 nations. Australia attempted their first Grand Slam tour of the Home Nations since 2013. It was their tenth attempt at a Grand Slam, which they have achieved on only one occasion, in 1984. Australia were unsuccessful in their grand slam attempt, losing to both Ireland and England. In addition to their Grand Slam tour, Australia also played France, before playing the French Barbarians for the first time since 2005. World Champions New Zealand played Ireland twice, one of which was played at the historic Soldier Field stadium in Chicago, the venue having previously hosted tests between the Eagles, All Blacks and Wallabies in 2014 and 2015. The game gave Ireland their first victory over New Zealand at the 29th attempt, in a rivalry dating back to 1905. The other Ireland v New Zealand test took place in Ireland as part of the All Blacks' European tour, which also saw them play Italy and France. England and Wales both played host to Argentina and South Africa, while the Pumas and Springboks also travelled to Scotland and Italy respectively. As in recent seasons, New Zealand and Australia played the third and final Bledisloe Cup Test match for the year, with New Zealand having already secured the cup 2–0 during the 2016 Rugby Championship.