Virtual International Authority File

VIAF combines multiple library name authority files into a single OCLC-hosted authority service.

viaf.org
Virtual International Authority File homepage screenshot

About Virtual International Authority File

The Virtual International Authority File (VIAF) is an OCLC-hosted open authority service that aggregates name authority records from multiple libraries and cultural institutions worldwide into a single unified dataset. It eliminates the need to search disparate national and institutional authority files to access consistent name information.

Users can search the aggregated name authority dataset, view data from contributing global library sources, and use the service for metadata management, research, or cataloging support. It is intended for library and information professionals, archivists, academic researchers, and anyone working with bibliographic or cultural heritage metadata who needs reliable, cross-referenced name authority data.

Key features

  • Combines multiple international library name authority files into a single service
  • Hosted by OCLC as a global library cooperative authority resource
  • Provides open access to aggregated library name authority datasets
  • Accessible via public web platform with no required software installation
Best for: Librarians, archivists, academic researchers, and metadata professionals benefit most from its unified, cross-referenced global name authority data.
Good for
  • Consolidates dispersed global library name authority data into a single accessible source
  • Open access model with no paywall for all users
  • Hosted and maintained by OCLC, an established global library cooperative
Watch out for
  • Limited exclusively to name authority data, with no full bibliographic record coverage
  • Data accuracy depends on the quality of records submitted by contributing institutions

Virtual International Authority File at a glance

Website
viaf.org
Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Automated check blocked
Listed
Oct 5, 2026

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Virtual International Authority File FAQ

What is the Virtual International Authority File (VIAF)?
VIAF is an OCLC-hosted open service that aggregates name authority records from global libraries and cultural institutions into a single unified dataset.
Is VIAF free to use?
Yes, VIAF offers free public access to its aggregated name authority data and search tools for all users.
What types of data are included in VIAF?
VIAF contains name authority records for personal, corporate, family, and geographic names from contributing global library sources.
Who hosts and maintains the VIAF service?
VIAF is hosted and maintained by OCLC, a global library cooperative.
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