Ihme

This article is about river in Germany. For global health institute, see Institute for Health Metrics and Evaluation.

Ihme

The Ihme near the southern city boundary of Hanover
Location	Hanover Region, Lower Saxony, Germany
Length	16 km (10 mi)dep1
Source	near Wennigsen from the Wennigser Mühlbach and Bredenbecker Beeke
Source height	70 m above sea level (NN)
Mouth	In Hanover into the Leine
Mouth height	50 m above sea level (NN)
Descent	20 mdep1
Basin	Weser < Aller < Leine
Catchment	110 km2 (42 sq mi)dep1
Right tributaries	Seniebach
Left tributaries	Hirtenbach, Schneller Graben
Cities	Hanover
Small towns	Ronnenberg, Wennigsen (Deister)
Population in catchment	500.000
Navigable	Schneller Graben to Leine
The confluence of the Ihme with the Leine (Leine from the right)
Ihme in a flood ditch in Hanover, taking floodwater to the Leine. Right: flooded cycle path

The Ihme is a 16-kilometre (10 mi) long river in Lower Saxony. It gives its name to the locality Ihme Roloven and is a left tributary of the Leine. Its source is in the village Evestorf. After about 6 kilometres (4 mi), the Ihme reaches the city of Hanover, where it flows into the Leine. In order to protect the city center of Hanover from flooding, much of the water of the Leine is rerouted by a ditch into the Ihme. A bridge over the Ihme is named in memory of Benno Ohnesorg.