The University of Texas at Austin (University of Texas, UT Austin, UT, or simply Texas) is a public research-intensive university located in Austin, Texas, United States. It is the flagship institution of the University of Texas System. Founded in 1883, its campus is approximately 0.25 miles (400 m) from the Texas State Capitol in Austin. The institution has the fifth-largest single-campus enrollment in the nation, with over 50,000 undergraduate and graduate students and over 24,000 faculty and staff.

The University of Texas at Austin was named one of the original eight Public Ivy institutions and was inducted into the American Association of Universities in 1929. The university is a major center for academic research, with research expenditures exceeding $640 million for the 2009–2010 school year. The university houses seven museums and seventeen libraries, including the Lyndon Baines Johnson Library and Museum and the Blanton Museum of Art, and operates various auxiliary research facilities, such as the J. J. Pickle Research Campus and the McDonald Observatory. Among university faculty are recipients of the Nobel Prize, Pulitzer Prize, the Wolf Prize, and the National Medal of Science, as well as many other awards.

UT Austin student athletes compete as the Texas Longhorns and are members of the Big 12 Conference. The university has won four NCAA Division I National Football Championships, and has claimed more titles in men's and women's sports than any other school in the Big 12 since the league was founded in 1996. Current and former UT Austin athletes have won 117 Olympic medals, including 14 in Beijing in 2008. The university was recognized by Sports Illustrated as "America's Best Sports College" in 2002.