The Pacific Islands Numeracy and Literacy Assessment 2018 regional report is a snapshot of Pacific students' learning after four and six years of formal education. It reports on the third cycle of the large scale assessment. PILNA is the only regional mechanism to assess the basic numeracy and literacy skills of Pacific Island children. The 2018 cycle was administered in 10 languages and involved 40,195 students of 925 schools in 15 Pacific countries, namely Cook Islands, Federated States of Micronesia, Fiji, Kiribati, Nauru, Niue, Palau, Papua New Guinea, the Republic of Marshall Islands, Samoa, Solomon Islands, Tuvalu, Tokelau, Tonga, and Vanuatu. This longitudinal research was made possible through funding support from the governments of Australia and New Zealand.