Photo: 663highland / CC BY 2.5 · Wikimedia Commons
Omihachiman City
Shiga Prefecture · City
Official websiteShiga Prefecture page
Omihachiman City grew from a castle town founded by Toyotomi Hidetsugu and prospered as the birthplace of the Omi merchants. The townscape along the Hachiman moat is a nationally protected historic district, and Western-style buildings by Vories remain. The ruins of Oda Nobunaga's Azuchi Castle, Okishima, the largest inhabited island in Lake Biwa, and the waterways of Lake Nishinoko are also highlights.
Key facts
Source: Statistics Bureau of Japan, 2025 Population Census (population, area and density); area from the Geospatial Information Authority of Japan (GSI), Area Statistics of Prefectures and Municipalities (2025). National ranks are among the 1,741 municipalities, ordered by this site from these values.
Live information
Current weather (observed)
Places to visit
Chosen automatically, most popular first, from landmarks and cultural properties registered in Wikidata (we have not checked whether each is open). Names and descriptions: Wikidata (CC0); photos: Wikimedia Commons (photographer and license under each photo).
Neighboring municipalities
Municipalities sharing a boundary (computed from the National Land Numerical Information administrative boundaries, January 2021).
Other municipalities in Shiga Prefecture
The description was written for this site, picking out representative features.