Lunain

Lunain
Country	France
Basin features
Main source	near Égriselles-le-Bocage 185 m (607 ft) 48°06′38″N 3°08′45″E / 48.11056°N 3.14583°E / 48.11056; 3.14583
River mouth	Loing 50 m (160 ft) 48°20′09″N 2°46′56″E / 48.33583°N 2.78222°E / 48.33583; 2.78222Coordinates: 48°20′09″N 2°46′56″E / 48.33583°N 2.78222°E / 48.33583; 2.78222
Progression	Loing→ Seine→ English Channel
Physical characteristics
Length	51.4 km (31.9 mi)

The Lunain is a 51.4 km (31.9 mi) long river in the Yonne and Seine-et-Marne départements in north-central France. It is a tributary off the right bank of the Loing.

Its source is in Yonne, less than 3 km (1.9 mi) south-west of Égriselles-le-Bocage. It joins the river Loing in Seine-et-Marne, at Épisy.