2017–18 Rotherham United F.C. season

The 2017–18 season will be Rotherham United's 93rd season in existence and their first season back in League One after finishing in 24th place in The Championship and suffering relegation the previous season.

The club will also participate in the FA Cup, EFL Cup and the EFL Trophy.

The season will cover the period from July 2017 to May/June 2018.