The 2004–05 La Liga season was the 74th since its establishment. It began on 28 August 2004, and concluded on 29 May 2005.
Teams
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 Levante (playing top flight football for the first time in thirty nine years), Getafe (playing in the top flight for the first time ever) and Numancia (returning after a three-year absence). They replaced Valladolid, Celta de Vigo and Murcia after spending time in the top flight for eleven, twelve and one years respectively.