Match officials at the 2011 FIFA Women's World Cup were selected by FIFA's Refereeing Department. 16 referees and 32 assistant referees were chosen from around the world to officiate the 32 games that made up the final tournament. Three 4th officials were selected before the tournament as well.
Officials
51 official were selected by the FIFA. The official list is below.
References
2011 FIFA Women's World Cup officials Wikipedia(Text) CC BY-SA