英格里亚是指涅瓦河流域中被芬兰湾、纳尔瓦河、楚德湖、拉多加湖所围起的一个地区。在瑞典语中称为Ingermanland、芬兰语中称为Inkeri、俄罗斯语中称为Ижора或Ингерманландия，中心城市是圣彼得堡。对俄罗斯来说，这一地区是俄罗斯往波罗的海和西欧的出口，因此在历史上俄罗斯多次和其他国家争夺此地。

Historical Ingria (Finnish:Inkeri or Inkerinmaa; Russian:Ингрия, Ingriya, Ижорская земля, Izhorskaya zemlya, or Ингерманландия, Ingermanlandiya; Swedish:Ingermanland; Estonian:Ingeri or Ingerimaa) is the geographical area located along the southern shore of the Gulf of Finland, bordered by Lake Ladoga on the Karelian Isthmus in the north and by the River Narva on the border with Estonia in the west.