According to NBC 551 ( and more)
435
463 athletes represented Germany in the 2008 Olympic Games.
alot
170 athletes and 130 support crew, making a team of around 300...
There are 410 athletes in the Australian Olympic team competing at the London 2012 olympics.
There were 595 athletes at the opening ceremony. But I'm unsure as to how many more there are competing that didn't go.
Five Divehi athletes were selected to the team, competing only in 3 different sports.
Never shy in the size of their teams the Australian Olympic team is around 433 athletes which no doubt will be one of the biggest competing.
313 athletes from Great Britain will compete in the 2008 Summer Olympics in Bejing, China.
There are 184 athletes in the Dutch (Netherlands) olympic team
12 athletes
436 athletes. A total Olympic delegation of 750.