| Country: | Spain |
| Grand Prix: | Spanish |
| Round No: | 2 |
| Season No: | 12 |
| Year: | 2005 |
| Location: | Circuit de Catalunya, Montmeló, Catalonia, Spain |
| Course: | Permanent racing facility |
| Course Km: | 4.627 |
| Course Mi: | 2.875 |
| Date R1: | 7 May |
| Laps R1: | 39 |
| Pole Driver Country: | USA |
| Pole Driver: | Scott Speed |
| Pole Team: | iSport International |
| Pole Time: | 1:25.486 |
| First Driver Country R1: | ITA |
| First Driver R1: | Gianmaria Bruni |
| First Team R1: | Coloni Motorsport |
| Second Driver Country R1: | USA |
| Second Driver R1: | Scott Speed |
| Second Team R1: | iSport International |
| Third Driver Country R1: | FIN |
| Third Driver R1: | Heikki Kovalainen |
| Third Team R1: | Arden International |
| Fast Driver Country R1: | GER |
| Fast Driver R1: | Nico Rosberg |
| Fast Team R1: | ART Grand Prix |
| Fast Time R1: | 1:25.875 |
| Fast Lap R1: | 38 |
| Date R2: | 8 May |
| Laps R2: | 18 |
| First Driver Country R2: | ARG |
| First Driver R2: | José María López |
| First Team R2: | DAMS |
| Second Driver Country R2: | BRA |
| Second Driver R2: | Nelson Piquet Jr. |
| Second Team R2: | Hitech Piquet Sports |
| Third Driver Country R2: | USA |
| Third Driver R2: | Scott Speed |
| Third Team R2: | iSport International |
| Fast Driver Country R2: | UK |
| Fast Driver R2: | Ryan Sharp |
| Fast Team R2: | DPR |
| Fast Time R2: | 1:26.251 |
| Fast Lap R2: | 17 |
The 2005 Spanish GP2 round was a GP2 Series motor race held on 7 and 8 May 2005 at the Circuit de Catalunya in Montmeló, Catalonia, Spain. It was the second race of the 2005 GP2 Series season. The race was used to support the 2005 Spanish Grand Prix.
The first race was won by Gianmaria Bruni for Coloni Motorsport, with Scott Speed second for iSport International and Heikki Kovalainen finishing third for Arden International.
The second race was won by José María López for DAMS, with Nelson Piquet Jr. for Hitech Piquet Sports and Scott Speed also on the podium.
| Pos | Driver | Points | ||
|---|---|---|---|---|
| 1 |  Heikki Kovalainen | 20 | ||
| 4 | 2 |  Scott Speed | 20 | |
| 1 | 3 |  Gianmaria Bruni | 18 | |
| 1 | 4 |  José María López | 17 | |
| 3 | 5 |  Adam Carroll | 13 |
| Pos | Team | Points | ||
|---|---|---|---|---|
| 1 | Arden International | 24 | ||
| 4 | 2 | iSport International | 20 | |
| 2 | 3 | Coloni Motorsport | 18 | |
| 4 |  DAMS | 17 | ||
| 3 | 5 | Super Nova International | 13 |
