IOI
International Olympiad in Informatics – Statistics
Countries*
CountryIOI HostMedals
GSBTotal
China20001002712139
Russia2016684012120
United States of America2003653816119
?Republic of Korea2002484728123
Poland2005425035127
Japan201835281073
Romania335836127
Iran2017316523119
Bulgaria1989, 2009275145123
Taiwan2014256127113
Slovakia254535105
Canada201020354095
?Vietnam195053122
Croatia2007164443103
Singapore2020, 2021164341100
?Belarus164244102
Czech Republic16285094
?Thailand2011153660111
Germany199215324996
Ukraine13384899
Hungary1996, 2023133750100
?Sweden199413303982
Israel11343479
Australia201310293978
Latvia7255587
United Kingdom7194773
Georgia7134262
?Hong Kong6334988
Indonesia20225334381
Finland20015264778
Estonia5204065
Netherlands19954184163
South Africa19974134562
?Türkiye19993265079
?Kazakhstan20153244067
France3183960
Brazil3183758
?Argentina1993392335
Sri Lanka371727
Denmark362332
Austria352836
?Czechoslovakia3429
?Soviet Union19903418
Lithuania2314982
?Italy20122244066
India2223963
?Serbia and Montenegro2151734
Switzerland293344
Serbia1203152
Armenia173240
?Slovenia162936
Ireland151521
Malaysia141318
Mexico2006132529
?Yugoslavia1315
?Mongolia12811
?Turkmenistan1067
Cuba082937
?Macau071724
?Moldova063137
?Greece1991, 2004062935
?Egypt2008062531
Bangladesh062228
?Spain062026
?Macedonia032427
Philippines031316
Belgium031215
?Norway031013
?Tajikistan0369
?German Democratic Republic0303
?Syria021517
Colombia02911
?Portugal199802911
Cyprus0279
New Zealand012223
Kyrgyzstan011718
Luxembourg011516
Azerbaijan2019011112
Bosnia and Herzegovina01910
?Jordan0145
?Chile0044
Saudi Arabia0044
Iceland0033
?Trinidad and Tobago0033
?Malta0022
?Morocco0022
Tunisia0022
?Uzbekistan0022
?Montenegro0011
?Palestine0011
Peru0011
?Venezuela0011
Albania0000
Bolivia0000
Dominican Republic0000
Ecuador0000
?El Salvador0000
?Gabon0000
Ghana0000
?Honduras0000
?Kenya0000
?Kuwait0000
?Libya0000
Madagascar0000
?Mauritius0000
?Mozambique0000
?Nigeria0000
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".