The National Diet Library (NDL) is the national library of Japan and among the largest libraries in the world. It was established in 1948 for the purpose of assisting members of the National Diet of Japan in researching matters of public policy. The library is similar in purpose and scope to the United States Library of Congress.
Best time to visit
Two separate windows work best: Feb–Mar & Nov–Dec. Pick the one that matches what you came for.
Pairs well with
Frequently asked questions
When is the best time to visit National Diet Library?
The best time to visit National Diet Library is February–March & November–December, in Tokyo, Japan.
Where is National Diet Library?
National Diet Library is in Tokyo, Japan.
What is National Diet Library known for?
The National Diet Library (NDL) is the national library of Japan and among the largest libraries in the world. It was established in 1948 for the purpose of assisting members of the National Diet of Japan in researching matters of public policy. The library is similar in purpose and scope to the United States Library of Congress.


