Haas Pavilion is a multi-purpose sports arena located on the campus of the University of California, Berkeley. Opened in 1999, it serves as the home for the university's men's and women's basketball teams, as well as the women's volleyball team. The pavilion has a seating capacity of approximately 11,877 and features modern amenities for both athletes and fans. In addition to hosting athletic events, Haas Pavilion is also used for various community events and activities. The facility is named after Walter Haas Jr., a prominent alumnus and philanthropist, who contributed significantly to its construction and ongoing support for the university's athletic programs.