12 selections by the St. Louis Blues in the 2003 NHL Entry Draft.
| Year | Pick | Round | Team | Player | Pos | Amateur Club | League | Country |
|---|---|---|---|---|---|---|---|---|
| 2003 | 30 | 1 | St. Louis Blues | Shawn Belle | D | Tri-City | WHL | CAN |
| 2003 | 62 | 2 | St. Louis Blues | David Backes | F | Lincoln | USHL | USA |
| 2003 | 84 | 3 | St. Louis Blues | Konstantin Barulin | G | Tyumen | RUS | RUS |
| 2003 | 88 | 3 | St. Louis Blues | Zack Fitzgerald | D | Seattle | WHL | USA |
| 2003 | 101 | 3 | St. Louis Blues | Konstantin Zakharov | F | Junost Minsk | BLR | BLR |
| 2003 | 127 | 4 | St. Louis Blues | Alexandre Bolduc | C | Rouyn-Noranda | QMJHL | CAN |
| 2003 | 148 | 5 | St. Louis Blues | Lee Stempniak | RW | Dartmouth College | ECAC | USA |
| 2003 | 159 | 5 | St. Louis Blues | Chris Beckford-Tseu | G | Oshawa | OHL | CAN |
| 2003 | 189 | 6 | St. Louis Blues | Jonathan Lehun | C | St. Cloud State | WCHA | CAN |
| 2003 | 221 | 7 | St. Louis Blues | Evgeny Skachkov | LW | Kapitan Jr. | RUS | RUS |
| 2003 | 253 | 8 | St. Louis Blues | Andrei Pervyshin | D | Yaroslavl Jr. | RUSSIA-JR. | RUS |
| 2003 | 284 | 9 | St. Louis Blues | Juha-Matti Tapio Aaltonen | F | Karpat Jr. | Finland Jr. | FIN |