The LSU Tigers are the athletic teams of Louisiana State University, in Baton Rouge, Louisiana. They participate in the NCAA's Division I, in the Southeastern Conference. LSU fields teams in 14 varsity sports (5 men's, 7 women's, 2 coed). Its official team nickname is the Fighting Tigers and the school mascot is Mike the Tiger. The official school colors are purple and gold, although in actuality the "gold" color which appears on the university's sports uniforms is canary yellow. LSU's nickname is a throwback to its Confederate heritage and is drawn from the Civil War fame of a New Orleans infantry company, the "Tiger Rifles," who fought so fiercely in General Robert E. Lee's Army of Northern Virginia that they, and eventually all other Louisiana troops, became known as "Louisiana Tigers."

Based on winning percentage, the University's athletics program is consistently one of the best in the nation. Its arenas include Tiger Stadium aka "Death Valley" (football), Pete Maravich Assembly Center (basketball, volleyball, gymnastics), Carl Maddox Fieldhouse (indoor track), Bernie Moore Stadium (outdoor track), Tiger Park (softball), and Alex Box Stadium (baseball). Important rivals in football include one of the longest running college football rivalries with the Ole Miss Rebels, and the Tulane Green Wave. Other rivals include the Alabama Crimson Tide, Arkansas Razorbacks, and the Auburn Tigers.