Sindernbach

{{Orphan|date=December 2019}}

{{Infobox river

| name =Sindernbach

| image =Sindernbach.JPG

| image_size =

| image_alt =

| image_caption =

| map =

| map_size =

| map_alt =

| map_caption =

| source1_location = on the east of the Mountain Lahnkopf, Rothaar Mountains

| mouth_location = in the village Nenkersdorf in the Sieg

| mouth_coordinates = {{coord|50.8959|8.1948|region:DE|display=it}}

| progression = {{RSieg}}

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = State

| subdivision_name2 = North Rhine-Westphalia

| length = {{convert|3.58|km|abbr=on}} {{GeoQuelle|DE-NW|GSK3C}}

| source1_elevation = {{convert|570|m|abbr=on}}

| mouth_elevation = {{convert|365|m|abbr=on}}

| discharge1_avg =

| basin_size = {{convert|3.471|km2|sqmi|abbr=on}} {{GeoQuelle|DE-NW|GSK3C}}

| river_system =

| tributaries_left = Nickseifen, Birkenborn

| tributaries_right = Butzbach

}}

Sindernbach ({{IPA|de|ˈzɪndɐnbax}}) is a river of North Rhine-Westphalia, Germany, which is 3.58 kilometers in length. It has its source on the east of the mountain Lahnkopf in the Rothaar Mountains in an elevation of 570 meters, and it flows into the river Sieg in the village of Nenkersdorf in an elevation of 365 meters above sea level.