Velika Usora

{{Infobox river

| name = Mala Usora

| image =

| image_size =

| image_caption =

|map={{Infobox mapframe

|zoom=10

|stroke-color=#003efa

|stroke-width=3

|marker=water}}

|pushpin_map = Bosnia

| source1_location =

| mouth_location = Usora

| mouth_coordinates = {{coord|44.6153|17.8536|display=it|region:BA_type:river}}

| progression = {{RUsora}}

| subdivision_type1 = Country

| subdivision_name1 = Bosnia and Herzegovina

| length =

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}}

Velika Usora River (English: Big Usora) is a river in central-northern Bosnia and Herzegovina. At its confluence with the Mala Usora River, at Teslić, it creates the Usora River.{{Cite journal |last=Coşkun |first=Yasin |date=2021-07-31 |title=TURKEY'S CONTRIBUTION TO PEACE AND STABILITY IN THE BALKANS: ASSESSING THE TURKISH MILITARY CONTINGENT IN BOSNIAHERZEGOVINA UNDER THE STABILIZATION FORCE (SFOR) MISSION (1996-2004) |url=https://dergipark.org.tr/en/pub/avrasya/issue/64391/977796 |journal=Avrasya Etüdleri |language=en |volume=59 |issue=1 |pages=35–57 |issn=1300-1604}} The Velika Usora has been historically important for the industrial development of Teslić, including a chemical factory and a steam-powered sawmill.{{Cite journal |last=Gavrilović |first=Darko |last2=Vasin |first2=Goran |last3=Mikavica |first3=Dejan |last4=Đukičin-Vučković |first4=Smiljana |last5=Ivanović-Bibić |first5=Ljubica |last6=Stojsavljević |first6=Rastislav |date=2018 |title=The influence of German settlers on the formation and development of an industrial town in Habsburg Bosnia: Teslić (1878-1918) |url=http://scindeks.ceon.rs/article.aspx?artid=0354-87241801054G |journal=Geographica Pannonica |volume=22 |issue=1 |pages=54–67 |doi=10.5937/22-16623 |issn=0354-8724|doi-access=free }}