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Dewey® Services

Countries with libraries that use the Dewey Decimal Classification® system

Libraries in 135+ countries use the Dewey Decimal Classification (DDC) system (or classification systems based on the DDC) to organize their collections for their users. Here is a list by region:

Africa

  • Botswana
  • Cameroon
  • The Gambia
  • Ghana
  • Kenya
  • Lesotho
  • Liberia
  • Malawi
  • Mauritius
  • Morocco
  • Namibia
  • Nigeria
  • Rwanda
  • Senegal
  • Seychelles
  • South Africa
  • Swaziland
  • Tanzania
  • Tunisia
  • Uganda
  • Zaire
  • Zambia
  • Zimbabwe

The Americas

  • Antigua and Barbuda
  • Bahamas
  • Barbados
  • Belize
  • Bermuda
  • Bolivia
  • Brazil
  • Canada
  • Chile
  • Colombia
  • Costa Rica
  • Dominican Republic
  • Ecuador
  • Guatemala
  • Guyana
  • Haiti
  • Honduras
  • Jamaica
  • Mexico
  • Nicaragua
  • Panama
  • Peru
  • Saint Lucia
  • Trinidad & Tobago
  • United States of America
  • Uruguay
  • Venezuela

Asia Pacific

  • Australia
  • Bangladesh
  • Cambodia
  • China
  • Fiji
  • India
  • Indonesia
  • Japan
  • Korea
  • Laos
  • Malaysia
  • Micronesia
  • Mongolia
  • Myanmar
  • Nepal
  • New Zealand
  • Pakistan
  • Papua New Guinea
  • Philippines
  • Samoa
  • Singapore
  • Solomon Islands
  • Sri Lanka
  • Taiwan
  • Thailand
  • Tonga
  • Vietnam

Europe

  • Austria
  • Belarus
  • Belgium
  • Bulgaria
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Estonia
  • Finland
  • France
  • Georgia
  • Greece
  • Hungary
  • Iceland
  • Ireland
  • Italy
  • Latvia
  • Lichtenstein
  • Lithuania
  • Luxembourg
  • Malta
  • Moldova
  • Netherlands
  • Norway
  • Portugal
  • Romania
  • Russia
  • Serbia & Montenegro
  • Slovenia
  • Spain
  • Sweden
  • Switzerland
  • Ukraine
  • United Kingdom

Middle East

  • Armenia
  • Azerbaijan
  • Bahrain
  • Egypt
  • Iran
  • Iraq
  • Israel
  • Jordan
  • Kazakhstan
  • Kuwait
  • Kyrgyzstan
  • Lebanon
  • Libya
  • Oman
  • Palestine
  • Qatar
  • Saudi Arabia
  • Syria
  • Tajikistan
  • Turkey
  • Turkmenistan
  • United Arab Emirates
  • Uzbekistan

The Dewey Decimal Classification (DDC) system is the world’s most widely used way to organize library collections. The DDC constantly updates to enable better discovery across any topic in multiple languages. Because the DDC is easy to use, you can increase the visibility of your materials quickly and efficiently.

Service availability

  • Dewey Services

    Available everywhere

Learn more

Download the Dewey Services brochure

Download the Dewey Services brochure
Download the brochure (US Letter)
Download the brochure (A4)


The Dewey blog is a great source for news and views on classification issues as well as interesting and unusual DDC resources and curiosities. It's also a convenient way to share feedback directly to the DDC editors to help shape the future of the DDC.

Past and recorded events

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All copyright rights in the Dewey Decimal Classification system are owned by OCLC. Dewey, Dewey Decimal Classification, DDC, OCLC and WebDewey are registered trademarks of OCLC.