Echi (愛知郡? Echi-gun) is a district located in Shiga Prefecture, Japan.
As of 2003, the district has an estimated population of 34,262 and a density of 325.07 persons per km². The total area is 105.40 km².
Coordinates: 35°10′N 136°13′E / 35.167°N 136.217°E