Delsbo (Swedish: [ˈdɛ̌lsbʊ]) is a locality in Hudiksvall Municipality, Gävleborg County, Sweden, with 2,192 inhabitants in 2010.

Research conducted in 2005 revealed that Delsbo has the highest density of villages in Sweden.

Approximately 104 different villages are scattered around the Delsbo community, among them the villages Ava, Johannesberg, Loppet, Långbacka, Norrberg, Norrväna, Oppsjö, Sannäs, Stenbo, Vitterarv and Västanäng.

The population of the Delsbo villages range from one person to a couple of hundred.

Summers are very warm for the northerly latitude in combination with quite moderate winters, that still retains larger seasonal differences than nearby Hudiksvall.