The 2010 Pacific Nations Cup was a rugby union tournament held between four national sides on the Pacific Rim: Fiji, Japan, Samoa and Tonga. The competition was won by Samoa. The Junior All Blacks, the defending title holder, decided not to take part in this year's competition. The inaugural competition was held in 2006. This year the tournament began on June 12 and ended on June 26, 2010, with most of the matches hosted by Samoa. All matches except for a match between Fiji and Asian 5 Nations champion, Japan were played at Apia Park in Samoa.