2013 IRB Nations Cup

The 2013 IRB Nations Cup was the eighth edition of the international rugby union tournament, a competition created by the International Rugby Board. For the seventh time in a row, it was held in Bucharest, Romania. It was played between 8 June and 16 June and ran alongside the 2013 IRB Tbilisi Cup in Georgia. All fixtures were played at the 5,000 capacity Stadionul Naţional de Rugby, the Home stadium for Hosts.

Hosts were joined by ENC side  and regular A sides Italy A and 2012 IRB Nations cup runners-up, Argentina Jaguars.

Romania retained the title they won in 2012 by winning all three of their matches.