加斯科涅（奥克语：Gasconha gasˈkunjɔ）指法国西南部的一个地区，位于今阿基坦大区及南部-比利牛斯大区。

在罗马人征服以前，加斯科涅的居民是阿基坦人，他们说的语言可能与现代的巴斯克语有关连。阿基坦人的定居范围从大西洋海岸起，在东面和北面直抵加龙河，南至比利牛斯山。

前50年代，罗马军征服加斯科涅。前27年，阿基坦高卢行省成立。

Gascony (/ˈɡæskəni/; French:Gascogne [ɡaskɔɲ]; Gascon: Gasconha [ɡasˈkuɲɔ]) is an area of southwest France that was part of the "Province of Guyenne and Gascony" prior to the French Revolution. The region is vaguely defined, and the distinction between Guyenne and Gascony is unclear; by some they are seen to overlap, while others consider Gascony a part of Guyenne. Most definitions put Gascony east and south of Bordeaux.