84 countries participated in the 1960 Summer Olympics at Rome: Afghanistan
Argentina
Australia
Austria
Bahamas
Belgium
Bermuda
Brazil
British Guiana
British West Indies
Bulgaria
Burma
Canada
Ceylon
Chile
Republic of China
Colombia
Cuba
Czechoslovakia
Denmark
Ethiopia
Fiji
Finland
France
Germany
Ghana
Greece
Haiti
Hong Kong
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
Japan
Kenya
South Korea
Lebanon
Liberia
Luxembourg
Malaya
Malta
Mexico
Monaco
Morocco
Netherlands
Netherlands Antilles
New Zealand
Nigeria
Norway
Pakistan
Panama
Peru
Philippines
Poland
Portugal
Puerto Rico
Rhodesia
Romania
San Marino
Singapore
Soviet Union
Spain
Sudan
Suriname
Sweden
Switzerland
Thailand
Tunisia
Turkey
Uganda
United Arab Republic
United States
Uruguay
Venezuela
Vietnam
Yugoslavia 30 countries participated in the 1960 Winter Olympics at Squaw Valley: Argentina
Australia
Austria
Bulgaria
Canada
Chile
Czechoslovakia
Denmark
Finland
France
Germany
Great Britain
Hungary
Iceland
Italy
Japan
South Korea
Lebanon
Liechtenstein
Netherlands
New Zealand
Norway
Poland
South Africa
Spain
Sweden
Switzerland
Turkey
United States
Soviet Union
24 nations ! (:
205 nations
204
80 different nations competed in the 2006 Torino Olympics.
82 nations.
204 nations competed and are listed on related link
There were two Olympics in 1988 Summer Olymics Seoul Games, 160 nations competed and 8391 athletes Winter Olympics Calgary '88, 57 nations competed and 1,423 athletes
there were a total of 83 nations. Those nations competed in 150 events
2,566 athletes from 82 different nations competed at the 2010 Olympics.
252 athletes competed at the 1932 Winter Olympics.
311 men competed in those Olympics in Athens. They were all men.
3,684 women athletes competed in the 1996 Olympics held in Atlanta, Georgia.