格伦罗西斯（英语：Glenrothes  listen 英语发音：/ɡlɛnˈrɒθɨs/, glen-ROTH-iss；苏格兰盖尔语：Gleann Ràthais），或译格兰洛斯，是位于法夫的一个镇，处在英国苏格兰的中东部地区，距离爱丁堡北部约30英里（48公里），北部是邓迪。2011年镇上有39,277居民，成为法夫第三大人口聚居地。格伦罗西斯之名来自历史上在此拥有封地的罗西斯伯爵，整个镇也是建造在封地的基础上的。加上“Glen”（村）则是为了防止与马里的罗西斯混淆。

格伦罗西斯的建造计划在1940年代提出，是二战之后苏格兰的新镇之一。最初的目的是为了给附近一个新开煤矿，即“罗西斯煤矿”（Rothes Colliery）的矿工提供居所，虽然煤矿的开发以失败告终，但格伦罗西斯在1961年到2000年成功转型为苏格兰的硅谷，多家大型高科技电子公司在此有分支机构。一些跨国公司在此有全球总部。

Glenrothes ( listen ; /ɡlɛnˈrɒθᵻs/, glen-ROTH-iss; Scottish Gaelic:Gleann Ràthais) is a town situated in the heart of Fife, in east-central Scotland. It is located approximately 30 miles (48 km) from both Edinburgh, which lies to the south and Dundee to the north. The town had a population of 39,277 in 2011 as recorded by the census, making it the third largest settlement in Fife and the 18th most populous settlement in Scotland. The name Glenrothes comes from its historical link with the Earl of Rothes who owned much of the land upon which the new town has been built; "Glen" (Scottish for valley) was added to the name to avoid confusion with Rothes in Moray and in recognition that the town lies in a river valley. The motto of Glenrothes is "Ex terra vis", meaning "Out of the earth, strength", which dates back to the founding of the town.