All matches for the 2018 tournament, played over two rounds, were held in Fiji at the ANZ National Stadium in Suva.

Hosts Fiji and fellow Pacific nations Samoa and Tonga were joined by Georgia who competing for the first time in the tournament.

Romania was also initially scheduled to compete for the Cup until Samoa's place in the competition was confirmed in May 2018.

On 30 May, John McKee finalised a 32-man squad for the Pacific Nations Cup and their June test match against Tonga.

On 21 May, Toutai Kefu named a 30-man squad for the Pacific Nations Cup and their June test match against Fiji.