| Club: | Rotherham United |
| Season: | 2003–04 |
| Manager: | Ronnie Moore |
| League: | First Division |
| League Result: | 17th |
| Cup1: | FA Cup |
| Cup1 Result: | Third round |
| Cup2: | League Cup |
| Cup2 Result: | Third round |
| Pattern La1: | _redborder |
| Pattern B1: | _collarwhite |
| Pattern Ra1: | _redborder |
| Pattern Sh1: | _red stripes |
| Pattern So1: | _whiteline |
| Body1: | ff0000 |
| Socks1: | ff0000 |
| Prevseason: | 2002–03 |
| Nextseason: | 2004–05 |
During the 2003–04 season, Rotherham United participated in the Football League First Division.
Rotherham slumped somewhat following last season's comfortable midtable finish and ended the season in 17th, three points from the relegation zone.
Squad at end of season[1]