Nercha

{{Infobox river

| name = Nercha

| image = Nercha.jpg

| image_caption =

| map = Shilka.png

| map_caption = Shilka basin, including Nercha

| source1 = Olyokma-Stanovik

| source1_elevation =

| mouth = Shilka

| mouth_location =

| mouth_coordinates = {{coord|51.9169|N|116.6411|E|source:wikidata-and-enwiki-cat-tree_region:RU|display=it}}

| progression = {{RShilka}}

| subdivision_type1 = Country

| subdivision_name1 = Russia

| length = {{convert|580|km|abbr=on}}

| discharge1_avg =

| basin_size = {{convert|27,500|km2|abbr=on}}

}}

{{Chinese

|p=Níbùchǔ hé

|c=尼布楚河

|mnc=25px
Nibcu bira

|rus=Нерча}}

The Nercha ({{langx|ru|Нерча}}, {{langx|bua|Нэршүү}}, Nershüü; {{langx|mn|Нэрчүү}}, Nerchüü) is a river in Zabaykalsky Krai in Russia, left tributary of the Shilka{{cite book | title=China Journal | publisher=China society of science and arts | issue=v. 1, nos. 4-6 | year=1923 | url=https://books.google.com/books?id=BxXuAAAAMAAJ | access-date=June 8, 2019 | page=516}} (Amur's basin). The length of the river is {{convert|580|km|mi}}. The area of its basin is {{convert|27,500|km2|sqmi}}.{{GVR|288081|Река Нерча}} The Nercha freezes up in October and stays icebound until late April – early May. The town of Nerchinsk is located on the Nercha,{{efn|"Not until 1656 did Filippovich Pashkov, the voevoda of Yeneiseisk , found Nerchinsk at the mouth of the Nercha River..."{{cite book | last=Fu | first=L. | title=A Documentary Chronicle of Sino-Western Relations, 1644-1820: Documentation and reference | publisher=Published for the Association for Asian Studies by the University of Arizona Press | series=A Documentary Chronicle of Sino-Western Relations, 1644-1820 | year=1966 | url=https://archive.org/details/documentarychron00fulo | url-access=registration | access-date=June 8, 2019 | page=482}}}} {{convert|7|km|mi|0}} from its confluence with the Shilka.