Florida International University is a public research university with its main campus in University Park, Florida, United States. Founded in 1965 by the Florida Legislature, the school opened its doors to students in 1972. FIU has grown to become the third-largest university in Florida and the eighth-largest public university in the United States by enrollment. FIU is a c…Florida International University is a public research university with its main campus in University Park, Florida, United States. Founded in 1965 by the Florida Legislature, the school opened its doors to students in 1972. FIU has grown to become the third-largest university in Florida and the eighth-largest public university in the United States by enrollment. FIU is a constituent part of the State University System of Florida.