Human noroviruses, single-stranded RNA viruses in the family Caliciviridae, are a leading cause of nonbacterial acute gastroenteritis in people of all ages worldwide. In this study, we detected a rare norovirus genotype, GIX.1[GII.P15], in a vomit sample of a 60 year old woman with acute gastroenteritis using Raji cells and sequenced the complete genome.