| Competition: | La Liga |
| Season: | 2005–06 |
| Dates: | 27 August 2005 – 19 May 2006 |
| Winners: | Barcelona 18th title |
| Relegated: | Alavés Cádiz Málaga |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Barcelona Real Madrid Valencia Osasuna |
| Continentalcup2: | UEFA Cup |
| Continentalcup2 Qualifiers: | Sevilla Celta Vigo Espanyol (as Copa del Rey winners) |
| Continentalcup3: | Intertoto Cup |
| Continentalcup3 Qualifiers: | Villarreal |
| League Topscorer: | Samuel Eto'o (26 goals) |
| Biggest Home Win: | Málaga 5–0 Real Betis (23 October 2005)[1] Barcelona 5–0 Real Sociedad (30 October 2005)[2] Getafe 5–0 Espanyol (22 January 2006)[3] Atlético Madrid 5–0 Málaga (25 February 2006)[4] Espanyol 5–0 Sevilla (26 February 2006)[5] Cádiz 5–0 Málaga (13 May 2006)[6] |
| Biggest Away Win: | Osasuna 0–4 Getafe (2 April 2006)[7] Cádiz 0–4 Sevilla (11 February 2006)[8] |
| Highest Scoring: | Valencia 5–3 Cádiz (2 April 2006)[9] |
| Matches: | 380 |
| Total Goals: | 936 |
| Prevseason: | 2004–05 |
| Nextseason: | 2006–07 |
The 2005–06 La Liga season was the 75th since its establishment. It began on 27 August 2005, and concluded on 19 May 2006; all top-flight European leagues ended earlier than the previous season due to the impending 2006 FIFA World Cup.
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 Cádiz, Celta de Vigo and Alavés, returning to the top flight after an absence of twelve, one and two years respectively. They replaced Levante, Numancia (both teams relegated after a season's presence) and Albacete (ending their two-year top flight spell).
| Team | Stadium | Capacity | |
|---|---|---|---|
| 98,772 | |||
| 80,354 | |||
| 55,926 | |||
| 55,005 | |||
| 55,000 | |||
| 52,132 | |||
| 45,500 | |||
| 39,750 | |||
| 34,600 | |||
| 34,596 | |||
| Celta de Vigo | 32,500 | ||
| 32,200 | |||
| 30,044 | |||
| 23,142 | |||
| 23,000 | |||
| Cádiz | 23,000 | ||
| 22,400 | |||
| Alavés | 19,840 | ||
| 19,553 | |||
| 16,300 |
(*) Promoted from Segunda División.
The Pichichi Trophy is awarded to the player who scores the most goals in a season.
The Ricardo Zamora Trophy is awarded to the goalkeeper with the lowest ratio of goals conceded to matches played.
| Rank | Player | Club | Goals against | Matches | Average | |
|---|---|---|---|---|---|---|
| 1 |  José Manuel Pinto | Celta Vigo | 28 | 37 | ||
| 2 | Santiago Cañizares | Valencia | 29 | 36 | ||
| 3 | Víctor Valdés | Barcelona | 29 | 35 | ||
| 4 |  Leo Franco | Atlético Madrid | 31 | 34 | ||
| 5 | Iker Casillas | Real Madrid | 38 | 37 | ||
| Andrés Palop | Sevilla | 37 | 36 | |||
 Sebastián Viera | Villarreal | 30 | 29 | |||
| 8 | Toni Prats | Mallorca | 36 | 31 | ||
| 9 | Ricardo | Osasuna | 35 | 30 | ||
| 10 | José Francisco Molina | Deportivo La Coruña | 45 | 38 |
| Rank | Club | width=50px | Points |
|---|---|---|---|
| 1 | Barcelona | 86 | |
| 2 | 98 | ||
| 3 | 99 | ||
| 4 | 106 | ||
| 5 | 114 | ||
| 6 | 116 | ||
| 7 | 124 | ||
| Mallorca | |||
| 9 | 125 | ||
| 10 | 128 | ||
| 11 | 130 | ||
| 12 | 131 | ||
| Real Madrid | |||
| 14 | 136 | ||
| 15 | 163 | ||
| 16 | 171 | ||
| Racing Santander | |||
| 18 | 179 | ||
| 19 | 183 | ||
| 20 | 187 |
See main article: List of La Liga hat-tricks.
| Player | Club | Against | Result | Date | |
|---|---|---|---|---|---|
 Juan Arango | Mallorca | Real Sociedad | 5–2 (H) | ||
 Nenê | Alavés | Getafe | 3–4 (H) | ||
 Zinedine Zidane | Real Madrid | Sevilla | 4–2 (H) | ||
| Dani | Real Betis | Zaragoza | 3–4 (A) | ||
| Luis García | Espanyol | Sevilla | 5–0 (H) | ||
| David Villa | Valencia | Athletic Bilbao | 3–0 (A) |
