Addition Financial Arena is a sports and entertainment arena located near Orlando in Orange County, Florida, United States, on the main campus of the University of Central Florida. It was constructed beginning in 2006 as a replacement for the original UCF arena, and as a part of Knights Plaza. The arena is home to the UCF Knights men's and women's basketball teams. The arena also hosted the annual Science Olympiad in 2012 and 2014.

The University of Central Florida (UCF) is a public research university with its main campus in unincorporated Orange County, Florida. It is part of the State University System of Florida. With 68,442 students as of the fall 2022 semester, UCF has the fourth-largest on-campus student body of any public university in the United States. UCF is classified among "R1: Doctoral Universities – Very high research activity" and is accredited by the Commission on Colleges of the Southern Association of Colleges and Schools.