Editing National Diet Library (section)

{{short description|National library in Japan}}
{{Use mdy dates|date=August 2023}}
{{Infobox library
| native_name = {{lang|ja|国立国会図書館}}<br /> (Kokuritsu Kokkai Toshokan)
| name = National Diet Library (NDL)
| logo = National_Diet_Library_Logo.png
| image = National diet library 2009.jpg
| caption = Tokyo Main Library of the National Diet Library
| country = Japan
| type = National Library, Parliamentary Library
| scope = 
| established = {{Start date and age|1948|paren=yes}}
| ref_legal_mandate = National Diet Library Law
| location = [[Tokyo]] and [[Kyoto]]
| coordinates = {{Coord|35|40|42|N|139|44|39|E|region:JP-13_type:landmark_source:dewiki|display=inline,title}}
| branch_of = 
| num_branches = 27
| items_collected = Books, Journals, Newspapers, Electronic archives, Manuscripts, Official publications, Doctoral dissertations, Maps and Sheet music
| collection_size = 47,531,625 items (Key statistics of FY 2023)<ref name="numbers">{{Cite web |year=2017 |title=Statistics |url=http://ndl.go.jp/en/aboutus/outline/numerically.html |access-date=9 September 2017 |website=National Diet Library |language=en |archive-date=July 7, 2014 |archive-url=https://web.archive.org/web/20140707165315/http://ndl.go.jp/en/aboutus/outline/numerically.html |url-status=live }}</ref>
| criteria = Publications issued in Japan, statutes and parliamentary documents, publications on Japan, reference material, material on science and technology, publications of international organizations and foreign governments, children's literature and related material, Asian works
| legal_deposit = legal deposit
| req_to_access = 18 years old and above for the Tokyo Main Library and the Kansai-kan
| annual_circulation = 
| pop_served = Members of the Diet (722 as of Feb. 2009) and the general public.
| members = 
| budget = JP¥20,163M (FY2008) (US$221M)
| director = {{ill|Motonobu Yoshinaga|ja|吉永元信}} (2020)<ref>{{Cite web |url=https://current.ndl.go.jp/e2263 |title=吉永元信国立国会図書館新館長インタビュー |date=2020-05-28 |accessdate=2023-08-17 |editor=関西館図書館協力課調査情報係 |website=カレントアウェアネス-E |publisher=国立国会図書館関西館図書館協力課 |lang=ja |archive-date=May 28, 2023 |archive-url=https://web.archive.org/web/20230528161154/https://current.ndl.go.jp/e2263 |url-status=live }}</ref>
| num_employees = 908
| website = {{Official URL}}
}}
[[File:National Library Kansai.jpg|thumb|Kansai-kan of the National Diet Library]]

The {{Nihongo|'''National Diet Library''' ('''NDL''')|国立国会図書館|Kokuritsu Kokkai Toshokan}} is the [[national library]] of [[Japan]] and among the [[List of largest libraries|largest libraries in the world]]. It was established in 1948 for the purpose of assisting members of the {{Nihongo|[[National Diet|National Diet of Japan]]|国会|Kokkai}} in researching matters of public policy. The library is similar in purpose and scope to the United States [[Library of Congress]].

The National Diet Library (NDL) consists of two main facilities in [[Tokyo]] and [[Kyoto]], and several other branch libraries throughout Japan.