The Frankfurt Rhine Main Area, often referred to as Rhine Main Area or Greater Frankfurt is a Metropolitan Area located in central western Germany, that encompasses three federal states: Hesse, Rhineland-Palatinate and Bavaria.

The polycentric region is named after its core city Frankfurt and the rivers Rhine and Main. The Frankfurt Rhine Main Area, as officially designated as a European Metropolitan Area by Germany's Federal Office for Building and Regional Planning, has a population exceeding 5.2 million and covers an area of roughly 13.000 km²