The 2021 Tarleton State Texans football team represented Tarleton State University in the 2021 NCAA Division I FCS football season.

The Texans played their home games at Memorial Stadium in Stephenville, Texas, and were coached by Todd Whitten.

Due to the NCAA's transition rules, they were not eligible for the 2021 FCS Playoffs.

The Western Athletic Conference coaches released their preseason poll on July 27, 2021.

In addition, several Texans were selected to both the preseason WAC Offense and Defense teams.