Cajundome, Multi-purpose arena at University of Louisiana campus in Lafayette, USA

The Cajundome is a multi-purpose arena on the University of Louisiana campus in Lafayette, recognizable by its characteristic domed structure. The facility seats over 13,000 spectators, making it one of the largest basketball venues in the Sun Belt Conference region of the state.

Construction took place during the mayoralty of William Dudley Lastrapes Jr. and cost about 64 million US dollars, with the University of Louisiana at Lafayette contributing 50 million dollars and the land, and the City of Lafayette the rest. The arena opened on 10 November 1985; Kenny Rogers gave the first concert before 13,500 spectators, still the venue's attendance record. A convention center addition followed on 30 April 2002.

The arena serves the local community as a gathering place for fairs, sporting events, and shows that draw visitors from across the region. Students and locals use the facility regularly for university basketball games and ceremonies that shape academic life.

The arena seats 4,500 to 13,500 depending on configuration, and the 2016 renovation reworked seating, concessions, accessibility routes and signage. The Table Room, opened in January 2020 in a former storage space, holds about 300 people for pre-show early entry and private rentals, with table seating, a small performance area and a full bar. The adjoining convention center, dedicated in 2002, adds a 3,465 m² exhibition hall and 3,687 m² of conference space.

During hurricanes Katrina and Rita, the arena transformed into an emergency shelter, offering refuge and support to thousands of people. This function shows how the facility became vital infrastructure for the region during crisis periods.