法兰克福（德语：Frankfurt），正式全名为美茵河畔法兰克福（Frankfurt am Main），以便与位于德国东部的奥得河畔法兰克福（Frankfurt an der Oder）区别。法兰克福位于德国西部的黑森州，是莱茵水系美茵河岸的大城，也是德国中部与西南各邦人口最多的城市。法兰克福莱茵-美茵国际机场为德国规模最大的商用民航机场，法兰克福因此成为进出欧洲的重要门户。

法兰克福是歌德的诞生地，这位德国最受景仰的人文思想家，他的名字与德意志文化的传承及传播紧紧相连。法兰克福大学即以歌德之名为大学命名，德国政府也在世界各地成立「歌德学院」致力于德语教学。歌德在德语文化世界具备国粹瑰宝的地位，让法兰克福这座城市始终散发着与有荣焉的光彩。

Frankfurt am Main (German pronunciation:[ˈfʁaŋkfʊɐ̯t am ˈmaɪ̯n]) is the largest city in the German state of Hesse (Hessia) and the fifth-largest city in Germany, with a 2015 population of 731,095 within its administrative boundaries. The urban area called Frankfurt Rhein-Main has a population of 2,221,910. The city is at the centre of the larger Frankfurt Rhine-Main Metropolitan Region which has a population of 5,500,000 and is Germany's second-largest metropolitan region. Since the enlargement of the European Union in 2013, the geographic centre of the EU is about 40 km (25 mi) to the east.