As many can enter but expected wait for another person to answer :D
2,622 athletes participated in 2010 Winter Olympics held in Vancouver, British Columbia, Canada.
2,566 athletes from 82 different nations competed at the 2010 Olympics.
5,500
2600.
AROUND 2500
There are 2730 athletes registered for the 2010 winter Olympics in Vancouver, British Columbia Canada.
82
1 only
4,000,000 atletes and 4,000 countries will participate
Approximately 5,500 athletes from over 80 countries will participate at the Vancouver Winter Olympics in 2010. The Opening Ceremonies are eight days from today, beginning at 6:00 PM Vancouver Time (UTC-8) on February 12th, 2010.
As of September 16, 2009 the following countries are sending athletes to the 2010 Winter Olympics in Vancouver. There are expected to be more countries to send athletes but the total number will not be known until shortly before the Games start.AustraliaAustriaBahamasBelgiumBelarusCanadaCayman IslandsChinaCzech RepublicDenmarkEstoniaFinlandFranceGabonGeorgiaGermanyGhanaGreat BritainGreeceIndiaIranIsraelItalyJamaicaJapanKazakhstanSouth KoreaLatviaLebanonLiechtensteinLithuaniaMoldovaMonacoMongoliaNew ZealandNorwayPolandRussiaSenegalSloveniaSlovakiaSpainSwitzerlandSwedenTurkeyUnited StatesUkraine
At the 2010 Winter Games in Vancouver, Iceland sent athletes to compete in alpine skiing. At previous Winter Olympics, athletes representing Iceland have also competed in cross country skiing and ski jumping. They have won no Winter Olympic medals.