| Doubles | |
|---|---|
| 2003 St. Petersburg Open | |
| Champions |  Julian Knowle  Nenad Zimonjić |
| Runners-up |  Michael Kohlmann Rainer Schüttler |
| Final score | 7–6(7–1), 6–3 |
David Adams and Jared Palmer were the defending champions but did not compete that year.
Julian Knowle and Nenad Zimonjić won in the final 7–6(7–1), 6–3 against Michael Kohlmann and Rainer Schüttler.
Mahesh Bhupathi / 
Max Mirnyi (semifinals)
František Čermák / Leoš Friedl (first round) Tomáš Cibulec / Pavel Vízner (quarterfinals)
Jonathan Erlich / Andy Ram (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Bhupathi M Mirnyi | 7 | 6 | ||||||||||||||||||||||||
| WC |  V Davletshin M Elgin | 5 | 3 | 1 | M Bhupathi M Mirnyi | 2 | 6 | 6 | |||||||||||||||||||
| WC | H Levy M Youzhny | 79 | 6 | WC | H Levy M Youzhny | 6 | 3 | 3 | |||||||||||||||||||
N Kiefer  A Pavel | 67 | 2 | 1 | M Bhupathi M Mirnyi | 4 | 4 | |||||||||||||||||||||
| 4 | J Erlich A Ram | 4 | 77 | 6 | J Knowle N Zimonjić | 6 | 6 | ||||||||||||||||||||
K Braasch  S Sargsian | 6 | 65 | 1 | J Erlich A Ram | 6 | 3 | 3 | ||||||||||||||||||||
| P Luxa D Škoch | 4 | 65 | J Knowle N Zimonjić | 4 | 6 | 6 | |||||||||||||||||||||
| J Knowle N Zimonjić | 6 | 77 | J Knowle N Zimonjić | 77 | 6 | ||||||||||||||||||||||
 A Dupuis A Olhovskiy | 2 | 5 | M Kohlmann R Schüttler | 61 | 3 | ||||||||||||||||||||||
| M Kohlmann R Schüttler | 6 | 7 | M Kohlmann R Schüttler | 77 | 6 | ||||||||||||||||||||||
| Y Kafelnikov R Štěpánek | 3 | 0 | 3 | T Cibulec P Vízner | 63 | 2 | |||||||||||||||||||||
| 3 | T Cibulec P Vízner | 6 | 6 | M Kohlmann R Schüttler | 6 | 6 | |||||||||||||||||||||
 D Hrbatý  T Vanhoudt | 4 | 4 |  M García S Prieto | 4 | 4 | ||||||||||||||||||||||
| M García S Prieto | 6 | 6 | M García S Prieto | w/o | |||||||||||||||||||||||
 I Labadze M Safin | 77 | 6 | I Labadze M Safin | ||||||||||||||||||||||||
| 2 | F Čermák L Friedl | 65 | 4 | ||||||||||||||||||||||||
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