格鲁伊纳岛（英语：'Gruinard Island'，英语发音：/ˈɡrɪnjərd/ GRIN-yərd;苏格兰盖尔语：'Eilean Ghruinneard'）是英国苏格兰西北部海岸附近的一座小岛，与大陆（不列颠岛）最近点距离仅1.1公里。第二次世界大战期间，英国政府买下该岛，将其作为生化武器试验基地，试验将炭疽热作为生化武器使用。试验使得该岛受到了污染。在1986年曾用280吨甲醛对该岛进行杀菌消毒，并放养了一群绵羊在岛上。1990年，一位英国国防次长访问该岛，宣布该岛已经脱离危险。

Gruinard Island (/ˈɡrɪnjərd/ GRIN-yərd; Scottish Gaelic:Eilean Ghruinneard) is a small, oval-shaped Scottish island approximately 2 kilometres (1.2 mi) long by 1 kilometre (0.62 mi) wide, located in Gruinard Bay, about halfway between Gairloch and Ullapool. At its closest point to the mainland it is just over 1.1 kilometres (0.68 mi) offshore. The island was made dangerous for all mammals by experiments with the anthrax bacterium, until it was decontaminated in the late 20th century.