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 submitted	March 30, 2026
Times taken	11
Average score	75.6%
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Country Name	ISO code	IOC code
Equatorial Guinea	GNQ	GEQ
Vietnam	VNM	VIE
Portugal	PRT	POR
Nicaragua	NIC	NCA
Antigua and Barbuda	ATG	ANT
Barbados	BRB	BAR
Cambodia	KHM	CAM
Costa Rica	CRI	CRC
Haiti	HTI	HAI
Chad	TCD	CHA
Samoa	WSM	SAM
South Africa	ZAF	RSA
Burkina Faso	BFA	BUR
Guinea-Bissau	GNB	GBS
Guatemala	GTM	GUA
Latvia	LVA	LAT
Tonga	TON	TGA
Niger	NER	NIG
Sri Lanka	LKA	SRI
Myanmar	MMR	MYA
Taiwan	TWN	TPE
Botswana	BWA	BOT
Bhutan	BTN	BHU
Greece	GRC	GRE
Indonesia	IDN	INA
Philippines	PHL	PHI
Libya	LBY	LBA
Algeria	DZA	ALG
Bahrain	BHR	BRN
South Sudan	SSD	no code
Brunei	BRN	BRU
Tanzania	TZA	TAN
Republic of the Congo	COG	CGO
Zambia	ZMB	ZAM
Fiji	FJI	FIJ
Vanuatu	VUT	VAN
Saint Kitts and Nevis	KNA	SKN
Nepal	NPL	NEP
Saint Vincent and the Grenadines	VCT	VIN

Country Name	ISO code	IOC code
Nigeria	NGA	NGR
Togo	TGO	TOG
Croatia	HRV	CRO
Guinea	GIN	GUI
Honduras	HND	HON
El Salvador	SLV	ESA
Zimbabwe	ZWE	ZIM
Mauritius	MUS	MRI
Gambia	GMB	GAM
Bangladesh	BGD	BAN
Belize	BLZ	BIZ
Grenada	GRD	GRN
Uruguay	URY	URU
Paraguay	PRY	PAR
Kosovo	XXK	KOS
Bulgaria	BGR	BUL
Bahamas	BHS	BAH
Madagascar	MDG	MAD
Slovenia	SVN	SLO
Mongolia	MNG	MGL
Solomon Islands	SLB	SOL
Vatican City	VAT	no code
Chile	CHL	CHI
Iran	IRN	IRI
Oman	OMN	OMA
Mauritania	MRT	MTN
Malaysia	MYS	MAS
Netherlands	NLD	NED
Saudi Arabia	SAU	KSA
Seychelles	SYC	SEY
Angola	AGO	ANG
Kuwait	KWT	KUW
Lesotho	LSO	LES
Malawi	MWI	MAW
Switzerland	CHE	SUI
Denmark	DNK	DEN
United Arab Emirates	ARE	UAE
Sudan	SDN	SUD
Germany	DEU	GER

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