Countries and territories with library holdings in WorldCat
Listed in approximate order in which libraries in a country began using OCLC products and services
- United States
- Canada
- Mexico
- United Kingdom
- Australia
- Finland
- Germany
- France
- Ireland
- Denmark
- Netherlands
- Sweden
- Taiwan
- Barbados
- Belgium
- Costa Rica
- Iceland
- Italy
- Japan
- Oman
- China
- Puerto Rico
- Saudi Arabia
- Spain
- Switzerland
- Holy See
- New Zealand
- Portugal
- Greece
- India
- Iraq
- Israel
- Norway
- Pakistan
- Panama
- Philippines
- South Korea
- Serbia
- Singapore
- Trinidad & Tobago
- U.S. Virgin Islands
- Egypt
- Hong Kong
- Nigeria
- Brazil
- Ecuador
- Guam
- Jamaica
- Malaysia
- Qatar
- Thailand
- Turkey
- Kuwait
- Luxembourg
- Slovenia
- Colombia
- Cyprus
- Czech Republic
- Iran
- Montenegro
- Poland
- Russia
- Slovakia
- Venezuela
- Argentina
- Austria
- Botswana
- Chile
- Kenya
- Papua New Guinea
- Latvia
- Romania
- South Africa
- Uganda
- Bermuda
- El Salvador
- Estonia
- Hungary
- Morocco
- Nicaragua
- United Arab Emirates
- Uruguay
- Bahrain
- Namibia
- Albania
- American Samoa
- Andorra
- Angola
- Azerbaijan
- The Bahamas
- Bangladesh
- Belize
- Brunei
- Croatia
- Ethiopia
- Guyana
- Lesotho
- Swaziland
- Georgia
- Macau
- Peru
- Dominican Republic
- Gibraltar
- Indonesia
- Côte d’Ivoire
- Lithuania
- Macedonia
- Zimbabwe
- Armenia
- Bosnia & Herzegovina
- Bulgaria
- Ghana
- Guatemala
- Jordan
- Mauritius
- Micronesia
- Ukraine
- Lebanon
- Seychelles
- Sri Lanka
- Sudan
- Vietnam
- Afghanistan
- Kyrgyzstan
- Antigua & Barbuda
- Guadeloupe
- Tanzania
- Martinique
- Netherlands Antilles
- Bolivia
- Democratic Republic of the Congo
- Paraguay
- Honduras
- Greenland
- Malta
- Kosovo
- Cameroon
- Grenada
- Mongolia
- New Caledonia
- Anguilla
- Cayman Islands
- Zambia
- Suriname
- Saint Lucia
- Palau
- Solomon Islands
- Northern Mariana Islands
- Marshall Islands
- British Virgin Islands
- Maldives
- Aruba
- Malawi
- Turks & Caicos Islands
- Rwanda
- Senegal
- Madagascar
- Saint Vincent and the Grenadines
- Yemen
- Saint Kitts and Nevis
- Nepal
- Haiti
- Algeria
- Syria
- Monaco
- Kazakhstan
- Laos
- Tunisia
- Fiji
- Liechtenstein