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WorldCat

International union library catalog

Softwarewebsite online public access catalog union catalogQ846596

Founded: August 26, 1971
1
Sources
1.blog.oclc.org/next/celebrating-45-years-of-worldcat/
View statement on Wikidata ↗
Website: search.worldcat.org
, oclc.org/en/worldcat.html

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

WorldCat is a union catalog that itemizes the collections of tens of thousands of institutions, in many countries, that are current or past members of the OCLC global cooperative. It is operated by OCLC, Inc. Many of the OCLC member libraries collectively maintain WorldCat's database, the world's largest bibliographic database. The database includes other information sources in addition to member library collections. OCLC makes WorldCat itself available free to libraries, but the catalog is the foundation for other subscription OCLC services. WorldCat is used by librarians for cataloging and research and by the general public.

Overview

All data

46 statements · 13% with external sources · numbers in brackets are citations

Members / parts: Faceted Application of Subject Terminology
Headquarters: Dublin country: United States
Main Wikidata property: OCLC number
WorldCat Registry ID
FAST ID
OCLC work ID (obsolete)
Alexa rank: 3,756(December 1, 2021)
1
Sources
1.alexa.com/siteinfo/worldcat.orgRetrieved 2021-12-01
View statement on Wikidata ↗
5,234(September 9, 2020)
1
Sources
1.alexa.com/siteinfo/worldcat.orgRetrieved 2020-09-09
View statement on Wikidata ↗
Search formatter URL: https://search.worldcat.org/search?q=$1&qt=owc_search language: multiple languages
Language: multiple languages
Owned by: OCLC, Inc.
Different from: WorldCat Identities
Operator: OCLC, Inc.
1
Sources
1.Stated in Bibliographic Scan of Digital Scholarly Communication Infrastructure
View statement on Wikidata ↗
Country: United States

Data quality

statements

13%

externally sourced

Source last edited October 10, 2026. AIDb refreshes this page daily.

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AIDb. (2026). WorldCat (Q846596). Retrieved from https://aidb.si/e/worldcat-Q846596