The Blizzard Challenge 2011 was the seventh annual Blizzard Challenge which was again organised by the University of Edinburgh with assistance from the other members of the Blizzard Challenge committee – Prof. Keiichi Tokuda and Prof. Alan Black. One English corpus was used: the ‘Nancy’ corpus provided by Lessac Technologies. In commone with previous challenges, participants had the option of using labels that were provided for the corpus and for the test sentences.