| Year: | 1919 |
| Team: | LSU Tigers |
| Sport: | football |
| Conference: | Southern Intercollegiate Athletic Association |
| Short Conf: | SIAA |
| Record: | 6–2 |
| Conf Record: | 3–2 |
| Head Coach: | Irving Pray |
| Hc Year: | 2nd |
| Captain: | Tom Dutton |
| Stadium: | State Field |
| Prev: | 1917 |
The 1919 LSU Tigers football team represented the University of Louisiana (now known as Louisiana State University or LSU) as a member of the Southern Intercollegiate Athletic Association (SIAA) during the 1919 college football season. Led by second-year head coach Irving Pray, the Tigers compiled an overall record of 6–2, with a mark of 3–2 in conference play, and finished tied for 11th in the SIAA. LSU played home games at State Field in Baton Rouge, Louisiana.