Wikidata:Notability

Wikidata in its first phases has two main goals: to centralize interlanguage links across Wikimedia projects and to serve as a general knowledge base for the world at large. An item is acceptable if and only if it fulfills at least one of these two goals; that is, if it meets at least one of the three criteria below:

1. It contains at least one valid sitelink to a page on Wikipedia, Wikivoyage, Wikisource, Wikiquote, Wikinews, Wikibooks, Wikidata, Wikispecies, Wikiversity, or Wikimedia Commons.
   1. To be valid, a link must not be a talk page, page in MediaWiki namespace, special page, file, translations page, page in User or Draft namespace, page used by LiquidThreads (i.e. page in Thread and Summary namespace), page used by Structured Discussions (i.e., page in Topic namespace), subpage of Portal namespace, or any page that is intended for TemplateStyles (i.e. page names that end with ".css"). Note that a single Wikimedia page cannot have more than one sitelink in Wikidata. It is permitted for a sitelink to point to a redirect (although the software intentionally makes this difficult), but such a link will not count towards establishing notability.
   2. If a link is a template, the item must contain at least two such sitelinks, and any of them must not be one of /doc, /XML, /meta, /sandbox, /testcases or /TemplateData subpages. Items for non-subpages can be created with only one sitelink, but shouldn't be created in great numbers.
   3. If a link is a subpage of a module, it must not be a /doc page.
   4. Category items with a sitelink only to Wikimedia Commons are not permitted, unless either a) there is a corresponding main item which has a sitelink to a Commons gallery or b) the item is used in a Commons-related statement, such as category for pictures taken with this camera (P2033).
   5. On Wikisource, items for mainspace pages, Author pages, Translation pages, and Portal pages are valid, along with items for namespaces that exist on other Wikimedia sites (Category, Project...). Pages in the Index and Page namespaces are not considered valid. The status of subpages of mainspace pages (for example, individual chapters) is undetermined.
   6. On Wikinews, pages in the Comments namespace are not considered valid.
   7. On Wikidata, pages in namespace for structured data (currently includes items, properties, lexemes, EntitySchemas) are not allowed as target sitelink.
   8. On Wiktionary, items for citation pages are not allowed. Main namespace is also excluded because interlanguage links are automatically provided by Cognate.
   9. Status of pages in Meta-Wiki, MediaWiki.org, Wikimania and other supported special Wikimedia sites is undetermined. They should be discussed in a case-by-case basis.
2. It refers to an instance of a clearly identifiable conceptual or material entity that can be described using serious and publicly available references.
3. It fulfills a structural need, for example: it is needed to make statements made in other items more useful.

Alternatives

If the data you're trying to add falls outside of these notability guidelines, your data unfortunately won’t be accepted on Wikidata. But, our sibling projects, Wikibase Cloud and Wikibase Suite could be a good home for your data. Go to wikiba.se to learn more about the options.

• Wikidata:Notability/Exclusion criteria, a list of Wikimedia pages that are not considered automatically acceptable in Wikidata.
• Wikidata:Notability/Items considered notable, a list of items that have been considered acceptable, in accordance to the general guidelines above.
• Wikidata:Lexicographical data/Notability

References