{{Short description|District in Aichi prefecture, Japan}} right|thumb|300px|Map of Niwa District in Aichi Prefecture

{{nihongo|'''Niwa'''|丹羽郡|Niwa-gun}} is a district<ref>{{Cite web |last=日本歴史地名大系 |title=丹羽郡(にわぐん)とは？ 意味や使い方 |url=https://kotobank.jp/word/%E4%B8%B9%E7%BE%BD%E9%83%A1-3065450 |access-date=2025-09-21 |website=コトバンク |language=ja}}</ref> located in northwestern Aichi Prefecture, Japan.<ref>{{Cite web |title=Japan: Administrative Division (Prefectures, Districts and Cities) - Population Statistics, Charts and Map |url=https://www.citypopulation.de/en/japan/admin/ |access-date=2025-09-21 |website=www.citypopulation.de}}</ref>

As of October 1, 2019, the district had an estimated population of 58,304 with a density of 2,351 persons per km<sup>2</sup>. The total area is 24.79&nbsp;km<sup>2</sup>.

== Municipalities == The district consists of two towns:

* Fusō{{efn|group=lau|name=town|Classified as a town.}} * Ōguchi{{efn|group=lau|name=town}}

;Notes: {{notelist|group=lau}}

==History== {{incomplete list|date=April 2023}}

[[File:Aichi Niwa-gun.png|thumb|320px|right|Map showing original extent of Niwa District in Aichi Prefecture:<br /><br />* yellow - areas formerly within the district borders during the early Meiji period<br /> {{olist |Fusō-machi |Ōguchi-machi}}]]

260px|thumb|right|Colored areas are in this district.

===District Timeline=== {{incomplete list|date=April 2023}}

== References == {{Reflist}}{{Aichi}} {{Authority control}}

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Category:Districts in Aichi Prefecture

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