| Mode: | Basketball |
| Year: | 2003–04 |
| Team: | St. John's Red Storm |
| Conference: | Big East Conference (1979–2013) |
| Short Conf: | Big East |
| Record: | 2–21 (4 wins vacated) |
| Conf Record: | 1–15 |
| Head Coach: | Mike Jarvis (6th year) |
| Asst Coach2: | Mike Jarvis II |
| Asst Coach3: | Dermon Player |
The 2003–04 St. John's Red Storm men's basketball team represented St. John's University during the 2003–04 NCAA Division I men's basketball season. The team was coached by Mike Jarvis in his sixth year at the school until he was replaced by interim coach Kevin Clark. St. John's home games are played at Carnesecca Arena, then called Alumni Hall, and Madison Square Garden and the team is a member of the Big East Conference.
| Name | Number | Pos. | Height | Weight | Year | Hometown | Notes | ||
|---|---|---|---|---|---|---|---|---|---|
| sortname | Tim Doyle | 0 | 6'4" | 215 | Freshman | Transferred. Northwestern | |||
| sortname | 1 | 6'1" | 165 | Senior | Graduated | ||||
| sortname | Tristan Smith | 2 | 6'1" | 185 | Sophomore | Transferred. St. Francis | |||
| sortname | Eric King | 5 | 6'6" | 220 | Sophomore | Transferred. Tennessee State | |||
| sortname | Anthony Glover | 22 | 6'6" | 231 | Graduate | Graduated. |
|-!colspan=9 style="background:#FF0000; color:#FFFFFF;"| Exhibition|-!colspan=9 style="background:#FF0000; color:#FFFFFF;"| Regular Season|-