The three French territories in the Pacific (New Caledonia [NC], French Polynesia [FP], and Wallis and Futuna [WF]) were affected by an epidemic wave of influenza A(H1N1)2009 during the southern hemisphere winter. This wave of influenza-like illnesses was characterized by a short duration (approximately 8 weeks) and high attack rates: 16–18% in NC and FP, 28% in Wallis, and 38% in Futuna. The number of infected patients requiring intensive care hospitalization and the number of deaths were 21 and 10, respectively, in NC and 13 and 7 in Pf (none in WF). The reported risk factors for severe disease or death have already been mentioned, notably diabetes, pulmonary and cardiac conditions, obesity in adults, neuromuscular conditions in children, and Oceania origin. A significant proportion of the population remains susceptible to the virus, raising the possibility of a second wave, which must be anticipated through preventive measures (vaccination), clinical and virological surveillance, and public health planning. (R.A.)