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Countries whose ISO and IOC 3-letter codes differ

List all the countries whose ISO 3166-1 alpha3 and IOC (International Olympic Committee) 3-letter codes differ.
Source of both lists: https://www.worlddata.info/countrycodes.php
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Last updated: March 31, 2026
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First submittedMarch 30, 2026
Times taken9
Average score73.1%
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Country Name
ISO code
IOC code
Madagascar
MDG
MAD
Iran
IRN
IRI
Barbados
BRB
BAR
Botswana
BWA
BOT
Brunei
BRN
BRU
Bulgaria
BGR
BUL
Nicaragua
NIC
NCA
Saudi Arabia
SAU
KSA
Honduras
HND
HON
Portugal
PRT
POR
Republic of the Congo
COG
CGO
Fiji
FJI
FIJ
Netherlands
NLD
NED
Chad
TCD
CHA
Guinea
GIN
GUI
Croatia
HRV
CRO
South Sudan
SSD
no code
Switzerland
CHE
SUI
Sri Lanka
LKA
SRI
Greece
GRC
GRE
Saint Vincent and the Grenadines
VCT
VIN
Saint Kitts and Nevis
KNA
SKN
Kuwait
KWT
KUW
Vanuatu
VUT
VAN
Bahamas
BHS
BAH
Oman
OMN
OMA
Paraguay
PRY
PAR
Haiti
HTI
HAI
Libya
LBY
LBA
Costa Rica
CRI
CRC
Tanzania
TZA
TAN
Bahrain
BHR
BRN
Mauritius
MUS
MRI
Bangladesh
BGD
BAN
Zimbabwe
ZWE
ZIM
Zambia
ZMB
ZAM
Vatican City
VAT
no code
United Arab Emirates
ARE
UAE
Vietnam
VNM
VIE
Country Name
ISO code
IOC code
Niger
NER
NIG
Bhutan
BTN
BHU
Gambia
GMB
GAM
Solomon Islands
SLB
SOL
Burkina Faso
BFA
BUR
Chile
CHL
CHI
Lesotho
LSO
LES
Slovenia
SVN
SLO
Togo
TGO
TOG
Malawi
MWI
MAW
Nepal
NPL
NEP
Samoa
WSM
SAM
Algeria
DZA
ALG
Germany
DEU
GER
Angola
AGO
ANG
Grenada
GRD
GRN
Philippines
PHL
PHI
Belize
BLZ
BIZ
Latvia
LVA
LAT
Taiwan
TWN
TPE
Seychelles
SYC
SEY
El Salvador
SLV
ESA
Antigua and Barbuda
ATG
ANT
Mauritania
MRT
MTN
Malaysia
MYS
MAS
Sudan
SDN
SUD
Indonesia
IDN
INA
Uruguay
URY
URU
Guinea-Bissau
GNB
GBS
Myanmar
MMR
MYA
Kosovo
XXK
KOS
Nigeria
NGA
NGR
Denmark
DNK
DEN
Guatemala
GTM
GUA
South Africa
ZAF
RSA
Mongolia
MNG
MGL
Cambodia
KHM
CAM
Equatorial Guinea
GNQ
GEQ
Tonga
TON
TGA
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