The 2009 end of year rugby internationals, also known as the Autumn internationals in the Northern Hemisphere, saw Australia, New Zealand, South Africa, and Argentina, tour the northern hemisphere.

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The headline event of the series was an attempted Grand Slam tour of the Home Nations by Australia. This year marked the 25th anniversary of the Wallabies' only previous Grand Slam tour, which saw the Wallabies sweep all four matches and saw David Campese, Mark Ella, Nick Farr-Jones, and Michael Lynagh achieve international prominence. Also, for the second consecutive year, a Bledisloe Cup match was contested by New Zealand and Australia outside of either country, this time in Tokyo. The final event of the series, the Barbarians' traditional Final Challenge, involved New Zealand, with the Barbarians winning over a mostly second-string All Blacks side.

For the first time since the inception of the IRB World Rankings in 2003, all of the top 20 teams in the rankings played matches in the November window. The only top-20 teams not playing in the November tours were Uruguay and the United States, which played a two-legged 2011 Rugby World Cup qualifying tie during November.^[1]

This year's series was also marked by more non-Test matches pitting Test teams with top-level club teams than in recent years. Matches of this type are often called "midweek matches" because they are traditionally played at midweek, most often on Wednesday, although they can also be scheduled on a weekend when the touring team has no Test scheduled. Australia and South Africa both scheduled two such matches; the Wallabies won both of their matches comfortably, while the Springboks lost both of theirs.