Ihme

{{short description|River in Lower Saxony, Germany}}

{{Use British English |date=November 2024}}

{{Use dmy dates |date=November 2024}}

{{other uses|IHME (disambiguation)}}

{{infobox river

| name = Ihme

| map =

| map_size =

| map_caption =

| image = Ihme_hannover_suedgrenze.jpg

| image_size =

| image_caption = The Ihme near the southern city boundary of Hanover

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = State

| subdivision_name2 = Lower Saxony

| subdivision_type3 = Location

| subdivision_name3 = Hanover Region

| length_km = 26.2

| length_ref = {{GeoQuelle|DE-NI|UK}}

| depth_avg =

| source1_location = Near Wennigsen

| source1_coordinates =

| source1_elevation = {{Höhe|70|DE-NN|link=true }}

| mouth_location = In Hanover into the Leine

| mouth_coordinates = {{Coord|52.3771|9.71245|type:river_region:DE-NI|format=dms|display=it}}

| mouth_elevation = {{Höhe|50|DE-NN|link=true}}

| basin_population = 500,000

| basin_landmarks = {{ubl|Cities: Hanover|Small towns: Ronnenberg, Wennigsen (Deister)}}

| river_system =

| progression = {{RLeine}}

| basin_size_km2 = 111

| basin_size_ref = {{GeoQuelle|DE-NI|UK}}

| discharge1_location =

| discharge1_min =

| discharge1_avg =

| discharge1_max =

| tributaries_right = Seniebach

| tributaries_left = Hirtenbach, Schneller Graben

| waterbodies =

| ports =

| bridges =

| custom_label = Navigable

| custom_data = Schneller Graben to Leine

| extra =

}}

The Ihme (Wennigser Mühlbach in its upper course) is a river of Lower Saxony, Germany. It is a left tributary of the Leine.

The Ihme is {{convert|26|km|mi|0}} long. Its source is in the village {{ill |Evestorf |de |Evestorf |lt=Evestorf,|v=sup}} a district of Wennigsen. After about {{convert|6|km|mi|0}}, the Ihme reaches the city of Hanover, where it flows into the Leine. In order to protect the city centre 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.

{{gallery

|mode=nolines

|File:Ihme_leinedreieck.jpg

|The confluence of the Ihme with the Leine, with the Leine shown on the right

|File:Ihmeflutgraben_Hochwasser.jpg

|Ihme in a flood ditch to the left of a flooded bicycle path in Hanover, taking floodwater to the Leine.

}}

The Ihme gives its name to the village Ihme that, together with the village Roloven, forms the Ronnenberg district of {{ill |Ihme-Roloven |de | |fr | |lt=Ihme-Roloven.|v=sup}}