2004 Major League Baseball Draft Supplemental first round selections Supplemental first round selections

| Pick | Player | Team | Position_ | School |
|---|---|---|---|---|
| 31 | J. P. Howell | Kansas City Royals | LHP | University of Texas at Austin |
| 32 | Zach Jackson | Toronto Blue Jays | LHP | Texas A&M University |
| 33 | Justin Orenduff | Los Angeles Dodgers | RHP | Virginia Commonwealth University |
| 34 | Tyler Lumsden | Chicago White Sox | LHP | Clemson University |
| 35 | Matt Fox | Minnesota Twins | RHP | University of Central Florida |
| 36 | Danny Putnam | Oakland Athletics | OF | Stanford University |
| 37 | Jon Poterson | New York Yankees | C | Chandler High School (AZ) |
| 38 | Gio Gonzalez | Chicago White Sox | LHP | Monsignor Edward Pace High School |
| 39 | Jay Rainville | Minnesota Twins | RHP | Bishop Hendricken High School |