The University of California, Los Angeles (UCLA)^[1] is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the California State Normal School which later evolved into San José State University. The branch was transferred to the University of California to become the Southern Branch of the University of California in 1919, making it the second-oldest of the ten-campus University of California system after the University of California, Berkeley.

UCLA offers 337 undergraduate and graduate degree programs in a range of disciplines,^[12] enrolling about 31,600 undergraduate and 14,300 graduate and professional students annually.^[13] It received 174,914 undergraduate applications for Fall 2022, including transfers, making it the most applied-to university in the United States.^[14] The university is organized into the College of Letters and Science and twelve professional schools.^[15] Six of the schools offer undergraduate degree programs: Arts and Architecture, Engineering and Applied Science, Music, Nursing, Public Affairs, and Theater, Film and Television. Three others are graduate-level professional health science schools: Medicine, Dentistry, and Public Health. Its three remaining schools are Education & Information Studies, Management and Law.

UCLA student-athletes will compete as the Bruins in the Big Ten Conference beginning on August 2, 2024.^[16] They won 123 NCAA team championships while in the Pac-12 Conference, second only to Stanford University's 128 team titles.^[17][18] 410 Bruins have made Olympic teams, winning 270 Olympic medals: 136 gold, 71 silver and 63 bronze.^[19] UCLA has been represented in every Olympics since the university's founding (except in 1924) and has had a gold medalist in every Olympics in which the U.S. has participated since 1932.^[20]

As of March 2024, 16 Nobel laureates, 11 Rhodes scholars, two Turing Award winners, two Chief Scientists of the U.S. Air Force, one Pritzker prize winner, 7 Pulitzer prize winners, two U.S. Poet laureates, one Gauss prize winner, and one Fields Medalist have been affiliated with it as faculty, researchers and alumni.^[21][22] As of March 2024, 59 associated faculty members have been elected to the National Academy of Sciences, 17 to the American Philosophical Society, 32 to the National Academy of Engineering, 42 to the National Academy of Medicine, 10 to the National Academy of Inventors, and 167 to the American Academy of Arts and Sciences.^[23]