The 2003–04 Mississippi State basketball team represented Mississippi State University as a member of the Southeastern Conference during the 2003–04 college basketball season.

Under sixth-year head coach Rick Stansbury, the team played their home games at Humphrey Coliseum in Starkville, Mississippi.

Mississippi State won the SEC West Division regular season title finishing six games ahead of LSU and Alabama.

The Bulldogs were upset in the quarterfinal round of the SEC tournament, losing to Vanderbilt in overtime.

Mississippi State finished the season with a record of 26–4 (14–2 SEC).