The 2020 Idaho State Bengals football team represented Idaho State University in the Big Sky Conference during the 2020–21 NCAA Division I FCS football season.

Led by fourth-year head coach Rob Phenicie, the Bengals were 2–4 overall (2–4 in Big Sky, tied for fifth), and played their home games on campus at Holt Arena in Pocatello, Idaho.

Due to the COVID-19 pandemic, the season was delayed and started in late February 2021.

[1] In late July, Idaho State and New Mexico agreed to move 2020 game from August 29 (week zero) to September 19.

[2] Due to the COVID-19 pandemic, the season was delayed and started in late February 2021.