IOI
International Olympiad in Informatics – Statistics
Countries*
CountryIOI HostMedals
GSBTotal
China20001062812146
Poland2005455436135
Romania386037135
?Republic of Korea2002535028131
Bulgaria1989, 2009295745131
?Vietnam225355130
United States of America2003694117127
Iran2017336925127
Russia2016684012120
Taiwan2014266430120
?Thailand2011153965119
Croatia2007164648110
Slovakia264538109
Singapore2020, 2021184743108
Ukraine134252107
Hungary1996, 2023163852106
?Belarus164244102
Canada2010233642101
Czech Republic16295499
Germany199215325299
?Hong Kong, China7375195
Indonesia20225374789
Latvia8255588
?Türkiye19994295386
?Sweden199413304285
Lithuania2315285
Israel14343583
Australia201310314182
Japan201838331081
Finland20015284881
United Kingdom8224979
?Kazakhstan20153304275
?Italy20122264472
India3254270
Estonia5204368
Netherlands19954194366
France3214266
South Africa19974134865
Georgia7134464
Brazil3204164
Serbia1223659
Switzerland2113750
Armenia183746
?Moldova083240
Austria363039
Cuba083139
?Greece1991, 2004063339
?Argentina1993392638
?Slovenia172937
?Egypt2008, 2024082836
?Serbia and Montenegro2151734
Denmark362433
Bangladesh172533
Mexico2006132832
?Spain182130
?North Macedonia062430
Sri Lanka371727
New Zealand022527
?Macao, China071926
Malaysia261725
Kyrgyzstan032023
Ireland151521
Philippines041519
?Syria021618
Belgium031316
Azerbaijan2019021416
Luxembourg011516
?Norway131115
?Mongolia121114
Cyprus021113
Colombia021012
?Portugal199802911
Bosnia and Herzegovina011011
?Czechoslovakia3429
?Tajikistan0369
?Soviet Union19903418
?Turkmenistan1067
Saudi Arabia0077
Pakistan0066
?Yugoslavia1315
?Jordan0145
?Uzbekistan0145
?Chile0044
?German Democratic Republic0303
Iceland0033
?Morocco0033
?Trinidad and Tobago0033
?Malta0022
Tunisia0022
Algeria0011
?Montenegro0011
?Palestine0011
Peru0011
?Venezuela0011
Albania0000
Bolivia20250000
Costa Rica0000
Dominican Republic0000
Ecuador0000
El Salvador0000
?Gabon0000
Ghana0000
?Honduras0000
?Kenya0000
?Kuwait0000
?Libya0000
Madagascar0000
?Mauritius0000
?Mozambique0000
?Nigeria0000
Rwanda0000
United Arab Emirates0000
Zimbabwe0000

* According to S2.1 of IOI Regulations: "For the IOI, a Country is a state that has an officially recognised relationship with the United Nations, UNESCO, or which has already taken part in one or more past IOIs".