2015 World Rugby Nations Cup

The 2015 World Rugby Nations Cup was the tenth edition of the international rugby union tournament, a competition created by the World Rugby. For the ninth time in a row, it was held at the Stadionul Naţional de Rugby in Bucharest, Romania, and was played between 12 and 21 June, running alongside 2015 World Rugby Tbilisi Cup in Georgia.

, the hosts, were joined by ENC side and Argentina A side, Argentina Jaguars, while  returned for the first time since 2011, as they and Romania prepare to participate in the 2015 Rugby World Cup.

Hosts Romania won the tournament, for the first time since 2013, with three from three victories.

Fixtures
The fixtures were announced on 1 May 2015.