2021 end-of-year rugby union internationals

The 2021 end of year rugby union tests, also referred to as the 2021 Autumn internationals in the Northern Hemisphere, will be a number of rugby union test matches to be contested approximately during the Autumn months of October, November and December, primarily involving countries from the Northern Hemisphere hosting those from the Southern Hemisphere. Also involved in matches are those from second-tier teams. These international games count towards World Rugby's ranking system, with a team typically playing from two to four matches during this period.