The following is a list of international rugby union teams:

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National teams – band classification

Starting in 2008, in addition to the existing tier system, the IRB introduced a four-band system of classification in which unions are classified based on "their development status and record on the international stage". The details of tiers and bands are in the next sections of this article.

High performance

All countries previously in Tiers 1 and 2. Now under "High Performance" status are still divided in "Tier 1" and "Tier 2".

Tier 1

Tier 2

Developmental

Development One

Developmental

; European countries

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; North & South American countries