| Countries: |  France |
| Champions: | Stade Français |
| Count: | 12 |
| Runnersup: | USA Perpignan |
| Relegated: | US Colomiers and US Montauban |
| Prevseason: | 2002–03 |
| Nextseason: | 2004–05 |
The 2003–04 Top 16 season was the top level of French club rugby in 2003–04. The competition was played by 16 teams. In the first stage, two pools of 8 played. The first 4 of each pool were admitted to the "top 8" to play for the title, the other 4 to a relegation tournament.
(3 points for a win, 2 points for a draw, 1 point for a loss)
The teams total sum of the points obtained in the first round and the points obtained in the matches played with the 4 teams from the other group (home and away).
Two Pool of 4 teams. The first two of each pool were qualified for semifinals. Them and the third also qualified for 2004–05 Heineken Cup
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| FB | 15 |  Diego Giannantonio | ||
| RW | 14 | Pascal Bomati | ||
| OC | 13 | |||
| IC | 12 | Christophe Manas | ||
| LW | 11 | |||
| FH | 10 |  Manny Edmonds | ||
| SH | 9 | Ludovic Loustau | ||
| N8 | 8 | |||
| OF | 7 | Bernard Goutta (c) | ||
| BF | 6 | |||
| RL | 5 | |||
| LL | 4 | Colin Gaston | ||
| TP | 3 | Nicolas Mas | ||
| HK | 2 | |||
| LP | 1 | Perry Freshwater | ||
| Replacements: | ||||
| HK | 16 | |||
| PR | 17 |  Alejandro Moreno | ||
| LK | 18 | |||
| N8 | 19 | |||
| SH | 20 | Jérôme Fillol | ||
| WG | 21 | |||
| FH | 22 | |||
| Coach: | ||||
| Olivier Saïsset | ||||
| FB | 15 | |||
| RW | 14 | Juan Martín Hernández | ||
| OC | 13 | Stéphane Glas | ||
| IC | 12 | Brian Liebenberg | ||
| LW | 11 | Christophe Dominici | ||
| FH | 10 | |||
| SH | 9 | |||
| N8 | 8 | Patrick Tabacco | ||
| OF | 7 | Mauro Bergamasco | ||
| BF | 6 | |||
| RL | 5 |  Mike James | ||
| LL | 4 | David Auradou (c) | ||
| TP | 3 | Pieter de Villiers | ||
| HK | 2 | |||
| LP | 1 | |||
| Replacements: | ||||
| HK | 16 | |||
| PR | 17 | |||
| LK | 18 | Arnaud Marchois | ||
| FL | 19 | |||
| SH | 20 | |||
| FH | 21 | |||
| WG | 22 | |||
| Coach: | ||||
| Nick Mallett | ||||