芬诺斯堪底亚或称芬诺-斯堪地纳维亚，指科拉半岛、斯堪地纳维亚半岛、卡累利阿及芬兰地区的地质及地理名词。地理上，该词亦指挪威、瑞典及芬兰等地的芬诺斯堪地盾，而该地盾为波罗的地盾的一部分。

在文化方面，芬诺斯堪底亚指历史上较相近的萨米人、芬兰人、瑞典人、挪威人及俄罗斯人民族及文化。不同于北欧五国，芬诺斯堪底亚一词并不包括隔海的丹麦、冰岛及格陵兰等地。

芬诺斯堪底亚概念由威廉拉姆齐(Wilhelm Ramsay)1898年提出，另有说法指1900年提出。

白海-波罗的海运河常被认为是芬诺斯堪底亚与俄罗斯大陆的分界。

Fennoscandia (Finnish:Fennoskandia; Swedish:Fennoskandien; Norwegian:Fennoskandia; Russian:Фенноскандия Fennoskandiya), or Fenno-Scandinavia, is a term for the geographical Nordic region comprising the Scandinavian Peninsula, Finland, Karelia, and the Kola Peninsula. Thus the term usually covers the countries Finland, Norway and Sweden in their entireties. It also includes the Murmansk Oblast, much of the Republic of Karelia and parts of northern Leningrad Oblast in Russia. Its name comes from the Latin words Fennia (Finland) and Scandia (Scandinavia). The term was first used by the Finnish geologist Wilhelm Ramsay in 1900.