Holsnøy is an island in Meland municipality, Hordaland county, Norway. The island is the largest island in the municipality, and it makes up 98% of the land area of Meland municipality. The highest point on the island is the tall Eldsfjellet, a mountain located about north of the village of Rossland. The island is hilly and marshy, with the majority of the residents living along the southern shore. The largest settlement on the island is the village of Frekhaug on the southern shore. The island lies to the north/west of the mainland, between the islands of Radøy to the north and Askøy to the south.