The 2004 end of year tests (also known as the 2004 Autumn Internationals) international rugby union matches that takes place during November/December period between touring teams from the southern hemisphere. These consist of Australia, Argentina, New Zealand and South Africa, and one or more teams from the Six Nations Championship: England, France, Ireland, Italy, Scotland and Wales. South Pacific teams also toured the northern hemisphere, as well as Tier 2 European sides. South Africa attempted a grand slam tour but lost to England and Ireland.