阿斯克于（挪威语： Askøy ）是挪威的一个自治区，位于霍达兰郡。

霍达兰郡行政区划 北霍达兰 艾于斯特尔海姆 菲迪厄 林多斯 马斯菲尤恩 梅兰 莫达伦 拉德岛 沃斯 沃斯 哈当厄 埃德菲尤尔 格兰温 永达尔 克瓦姆 奥达 于伦斯旺 于尔维克 中霍达兰 阿斯克于 艾于斯特沃尔 卑尔根 菲耶尔 菲萨 乌斯 奥斯泰岛 厄于加伦 萨姆南厄尔 松 瓦克斯达尔 南霍达兰 伯姆卢 埃特讷 菲恰尔 克温赫拉 斯图尔 斯韦奥 廷斯内斯

Askøy is a municipality in Hordaland county, Norway. The island municipality is located in the Midhordland district of the county, sitting in a large group of islands immediately northwest of the city of Bergen. The administrative centre of the municipality is the urban village of Kleppestø on the southeastern shore of the island of Askøy. Since the opening of the Askøy Bridge connecting it to the mainland of Bergen in 1992, the population has increased rapidly. Its population growth among the highest in Norway. In 2014, the 10-year population growth rate was 27%. Most of the population growth is due to immigration from Bergen and the surrounding districts of Nordhordland and Midhordland. It is also the most populous island in Norway.