Innbach

{{Infobox river

| name = Innbach

| image = Fraham - Wiesmühle, Mühlbach.jpg

| image_size =

| image_caption = Wiesmühle in Fraham

| source1_location = near Gaspoltshofen

| mouth_location = the Danube at Wilhering

| mouth_coordinates = {{coord|48.3212|N|14.1609|E|source:kolossus-dewiki|display=it}}

| subdivision_type1 = Country

| subdivision_name1 = Austria

| subdivision_type2 = State

| subdivision_name2 = Upper Austria

| length_km = 58.8

| length_ref = {{GeoQuelle|AT-4|DORIS}}

| source1_elevation =

| mouth_elevation =

| discharge1_avg =

| basin_size_km2 = 196

| progression = {{RDanube}}

}}

The Innbach is a river in Upper Austria with a length of approximately {{cvt|59|km}}. Its source is near Gaspoltshofen at the foot of the {{ill|Hausruck|bar|Hausrugg|cs||de||nl||ro}} hills and empties into the Danube at Wilhering. Its drainage basin covers {{cvt|196|km2}}. After Gaspoltshofen, the Innbach passes the towns of Kematen am Innbach, Pichl bei Wels and Bad Schallerbach, at the mouth of the {{ill|Trattnach|ceb||de||sv}}. Near Eferding, it joins with the Aschach and a few kilometers later flows into the Danube downstream of the {{ill|Ottensheim-Wilhering Power Station |de|Kraftwerk Ottensheim-Wilhering|fr|Centrale hydroélectrique d'Ottensheim-Wilhering|no|Ottensheim vannkraftverk}}.

Due to its high volume, many mills were once located along the Innbach.

The Innbach is populated with many species of fish, among them: brown trout, brook trout, bullhead, minnow, grayling, gudgeon, rainbow trout, chub, barbel, roach, rudd, spirlin, perch, nase, dace, bleak, carp, bream, burbot, pike, zander, and catfish.