was a town located in Kanzaki District, Shiga Prefecture, Japan.
As of 2005, the town had an estimated population of 23,385 and a density of 751.45 persons per km<sup>2</sup>. The total area is 31.12 km<sup>2</sup>.
Notogawa Station (Location: N35.179899,E136.165913) is the only Japan Railway station in Higashiomi. The station is a rapid stop on the JR Biwako Line, located between stations in Omi-Hachiman to the east and Hikone to the west. The town shares a small border with Lake Biwa to the northwest.
On January 1, 2006, Notogawa, along with the town of Gamà  (from Gamà  District), was merged into the expanded city of Higashià Âmi.