Arnissa (; , Ostrovo,Ocherk puteshestvia po evropeyskoy Turcyi, Viktor Grigorovich before 1926: ?στροβον - OstrovonName changes of settlements in Greece) is a town in the Pella regional unit of Macedonia, Greece. It is located near the Lake Vegoritida and Mount Kaimakchalan and is the seat of the Vegoritida Municipality.