| Year: | 1900 |
| Team: | Texas Longhorns |
| Sport: | football |
| Conference: | Southern Intercollegiate Athletic Association |
| Short Conf: | SIAA |
| Record: | 6–0 |
| Conf Record: | 1–0 |
| Head Coach: | Samuel Huston Thompson |
| Hc Year: | 1st |
| Stadium: | Varsity Athletic Field |
The 1900 Texas Longhorns football team represented the University of Texas at Austin in the 1900 college football season. In their first year under head coach Samuel Huston Thompson, the Longhorns compiled an undefeated 6–0 and outscored opponents by a collective total of 113 to 13.