Gorganrud River

{{see|Gorgan (disambiguation)}}

{{refimprove|date=December 2018}}

{{Infobox river

| name = Gorganrud

| native_name = {{nativename|fa|گرگان‌رود}}

| image = گرگان رود - روستای بی بی شیروان.jpg

| image_caption = Gorganrud River at Bibi Shirvan village

| pushpin_map = Iran

| source1_coordinates = {{WikidataCoord|display=it}}

| source1_location =

| mouth_coordinates =

| mouth_location = Caspian Sea

| subdivision_type1 = Country

| subdivision_name1 = Iran

| length = {{convert|251|km|mi}}

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Gorganrud is a river in northeastern Iran. It begins in Mount Aladagh, located in the North Khorasan Province. Flowing through the Golestan Province, it ends at the Caspian Sea.

The condition of the Gorganrud estuary is of concern, partly as a result of upstream water use, including several dams, such as the Voshmgir, Golestan and Bostan.{{cite journal |last1=Fatemi |first1=Seyed Ehsan |last2=Vafaie |first2=Freydon |last3=Bressers |first3=Hans |title=Assessment of environmental flow requirement effects at an estuary |journal=Proceedings of the Institution of Civil Engineers - Water Management |date=September 2013 |volume=166 |issue=8 |pages=411–421 |doi=10.1680/wama.12.00005}}

Flash flooding occurred in 2001, with 300 fatalities, notably in the Madarsoo subcatchment upstream from Golestan Dam, including in Golestan National Park.{{cite journal |last1=Sharifi |first1=Forood |last2=Samadi |first2=S. Zahra |last3=Wilson |first3=Catherine A. M. E. |title=Causes and consequences of recent floods in the Golestan catchments and Caspian Sea regions of Iran |journal=Natural Hazards |date=18 August 2011 |volume=61 |issue=2 |pages=533–550 |doi=10.1007/s11069-011-9934-1}}