| Competition: | La Liga |
| Season: | 2003–04 |
| Dates: | 30 August 2003 – 23 May 2004 |
| Winners: | Valencia 6th title |
| Relegated: | Real Valladolid Celta Vigo Real Murcia |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Valencia (group stage) Barcelona (group stage) Deportivo (3rd qualifying round) Real Madrid (3rd qualifying round) |
| Continentalcup2: | UEFA Cup |
| Continentalcup2 Qualifiers: | Athletic Bilbao (first round) Sevilla (first round) Zaragoza (first round) (via Copa del Rey) |
| Continentalcup3: | Intertoto Cup |
| Continentalcup3 Qualifiers: | Atlético Madrid (third round) Villarreal (second round) |
| League Topscorer: | Ronaldo (24) |
| Biggest Home Win: | Real Madrid 7–2 Valladolid (13 September 2003)[1] Barcelona 5–0 Albacete (1 February 2004)[2] |
| Biggest Away Win: | Málaga 1–6 Valencia (31 January 2004)[3] Mallorca 0–5 Valencia (2 November 2003)[4] Celta Vigo 0–5 Deportivo (3 January 2004)[5] |
| Highest Scoring: | Real Madrid 7–2 Valladolid (13 September 2003) Villarreal 6–3 Racing (15 February 2004)[6] |
| Matches: | 380 |
| Total Goals: | 1015 |
| Prevseason: | 2002–03 |
| Nextseason: | 2004–05 |
The 2003–04 La Liga season, the 73rd since its establishment, started on 30 August 2003 and finished on 23 May 2004. Valencia were crowned champions for the 6th time in their history.
To date, this is the most recent season the league was won by a non top-3 team in La Liga.
Twenty teams competed in the league – the top seventeen teams from the previous season and the three teams promoted from the Segunda División. The promoted teams were Murcia, Zaragoza and Albacete, returning to the top flight after an absence of fourteen, one and seven years respectively. They replaced Recreativo, Alavés, and Rayo Vallecano after spending time in the top flight for one, five, and four years respectively.
| Team | Stadium | Capacity | |
|---|---|---|---|
| 98,772 | |||
| 80,354 | |||
| 55,926 | |||
| 55,005 | |||
| 55,000 | |||
| 52,132 | |||
| 45,500 | |||
| 39,750 | |||
| 34,600 | |||
| Real Zaragoza | 34,596 | ||
| 32,500 | |||
| 32,200 | |||
| 30,044 | |||
| 27,846 | |||
| 23,142 | |||
| 23,000 | |||
| 22,400 | |||
| 19,553 | |||
| Albacete | 18,000 | ||
| Murcia | 16,000 |
(*) Promoted from Segunda División.
The Pichichi Trophy is awarded to the player who scores the most goals in a season.
| Scorer | Team | Goals | |
|---|---|---|---|
 Ronaldo | Real Madrid | 24 | |
| Júlio Baptista | Sevilla | 20 | |
 Mista | Valencia | 19 | |
| Raúl Tamudo | Espanyol | 19 | |
| Fernando Torres | Atlético Madrid | 19 | |
| Salva | Málaga | 18 | |
| David Villa | Zaragoza | 17 | |
 Samuel Eto'o | Mallorca | 17 |
Valencia was the winner of the Fair-play award with 99 points.[7]
Joan Laporta (Barcelona president) and José María Alanís (CD Siempre Alegres footballer)[8]