Florida International University, commonly known as FIU, is a public research university with its main campus in University Park in metropolitan Miami, Florida, in the United States. Florida International University is a Comprehensive Doctoral Research University with very high research activity as determined by the Carnegie Foundation. FIU is also the youngest university to be awarded a Phi Beta Kappa chapter, by the Phi Beta Kappa Society, the country's oldest and most distinguished academic honor society. FIU is one of only 78 universities nationwide to hold both designations.