Holmöarna (Swedish, literally the islet islands) is an island group in the Kvarken narrows of the Gulf of Bothnia between Sweden and Finland. The islands form part of Umeå Municipality in Västerbotten County. The islands have 75 year-round inhabitants and the largest islands are Holmön, Ängesön, Grossgrunden, Holmögadd and Lilla and Stora Fjäderägg. Large areas of the islands have been set aside as nature reserves.
The islands are situated in the Norra Kvarken narrows between the Bothnian Sea to the south and the Bothnian Bay to the north. Holmöarna's nature is quite diverse with areas covered in forest, bogs and lakes, and the islands have a rich birdlife. The islands' natural life is so special that the whole of Holmögadd, Stora Fjäderägg and Grossgrunden, nearly all of Ängesön and the eastern half of Holmön and all waters surrounding these have been protected as a nature reserve since 1980, incidentally the largest island nature reserve in Sweden.