{{dablink|This article is about the subprefecture in Hokkaidō, Japan. For the subprefecture in Kagoshima Prefecture, see [[Ōshima Subprefecture (Kagoshima)]]. For the subprefecture in Tokyo, see [[Ōshima Subprefecture (Tokyo)]]. For other uses, see [[Oshima]].}}
{{dablink|This article is about the subprefecture in Hokkaidō, Japan. For the subprefecture in Kagoshima Prefecture, see [[Ōshima Subprefecture (Kagoshima)]]. For the subprefecture in Tokyo, see [[Ōshima Subprefecture (Tokyo)]]. For other uses, see [[Ōshima (disambiguation)|Ōshima]].}}
Oshima (渡島総合振興局, Oshima-sōgō-shinkō-kyoku) is a subprefecture of Hokkaidō, Japan. As of 2004 it had a population of 456,621 and an area of 3,715.38 km².
