2004 end-of-year rugby union internationals

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.

Several trophies were contested in this year's series, the main one being the Cook Cup between England and Australia. Australia won the Cook Cup match 21–19 and so won the cup for the first time since 1999.

South Africa attempted a grand slam tour but lost to England and Ireland.

Week 1
Notes:
 * This match was the first of a two-test series between Scotland and Australia.

Week 3
Notes:
 * This was the second match in a two-test series. Australia won the series 2–0.