The Primera División A Clausura 2009 is a Mexican football tournament, the second of two short tournaments held during the 2008–2009 Mexican football season. It began on January 10, 2009 and will run until May 23 or May 24, 2009. The winner of the tournament will earn a place in the promotional playoff against Querétaro, the winners of the Apertura 2008 tournament, to determine which team will be promoted to the Primera División.