Gostuń is a village in the administrative district of Gmina Ostrowite, within Słupca County, Greater Poland Voivodeship, in west-central Poland. It lies approximately south-west of Ostrowite, north-east of Słupca, and east of the regional capital Poznań.
Gostun may refer to:
- Gostun, a Ukrainian ruler
- Gostun, Bulgaria in Blagoevgrad Province, Bulgaria
- Gostun, Serbia in Serbia
- Gostuń in Poland
Gostun is a village in the municipality of Prijepolje, Serbia. According to the 2002 census, the village has a population of 49 people. During the Second World War a detachment of Muslim militia was established in this village, under command of Selim Juković.