The 2007 IRB Nations Cup is the second edition of the international rugby union tournament, a competition created by the International Rugby Board.

It pits the "A" Teams of the stronger (Tier 1) rugby nations (Argentina Jaguars, Emerging Springboks and Italy A) against some of the Tier 2 and 3 nations (Romania, Namibia and Georgia).

[1] Originally scheduled to take place in the Tineretului Stadium, Bucharest, Romania,[2] in the event the matches took place at the city's Stadionul Arcul de Triumf.

[3] Argentina Jaguars were the defending champions, but the Emerging Springboks were the overall winners.

The competition was played over three match days, with three matches played consecutively on each day.