{{Infobox body of water | name = Arjan lake | native_name = | native_name_lang = | image = Arzhan lake, Fars.jpg | alt = | caption = View of lake in spring | pushpin_map = Iran | pushpin_map_alt = | pushpin_map_caption = | coordinates = {{coord|29|37|0|N|51|59|0|E|display=inline,title}}<ref name=":1" /> | type = lake | inflow = rain | rivers = | outflow = none | basin_countries = | agency = | designation = | length = | width = | area = {{convert|2000|ha|abbr=on}}<ref name=":2" /> | depth = | max-depth = | volume = | residence_time = | salinity = | shore = | elevation = {{convert|1810|m|}}<ref name=":2" /> | frozen = | sections = | trenches = | benches = | cities = Shiraz, Fars, Iran | website = | reference = | mapframe = yes | mapframe-zoom = 12 | mapframe-wikidata = yes | embedded = {{Designation list | embed = yes | designation1 = Ramsar | designation1_offname = Lake Parishan and Dasht-e-Arjan | designation1_date = 23 June 1975<ref>{{cite web |title=Lake Parishan and Dasht-e-Arjan {{!}} Ramsar Sites Information Service |url=https://rsis.ramsar.org/ris/37 |website=rsis.ramsar.org |publisher=Ramsar Sites Information Service}}</ref> | designation1_number = 37 }}}}

'''Arjan Lake''' ({{langx|fa|دریاچه ارژن}}) also referred to as '''Arzhan''' or '''Dashte-Arjan''', is a lake and wetland situated in the southern region of the Zagros Mountains within Iran's Fars province. Spanning an area of 2,000 hectares, it is located 60 kilometers to the west of the city of Shiraz.<ref name=":0">{{Cite web |last=www.sirang.com |first=Sirang Rasaneh |title=Arjan Lake and Wetland 2024 {{!}} Shiraz, Fars {{!}} Sights - ITTO |url=https://itto.org/iran/attraction/348-Arjan-Lake-and-Wetland/ |access-date=2024-12-12 |website=itto.org {{!}} Iran Tourism & Touring}}</ref>

==Ecology== The lake is positioned within the Arzhan Protected Area, which is recognized for its ecological significance. The lake's ecosystem provides a niche for raspberry species.<ref name=":1">{{Cite web |title=Arjan Protected Area (Iran, Islamic Republic of) IBA {{!}} Summary {{!}} BirdLife International |url=https://datazone.birdlife.org/site/factsheet/arjan-protected-area-iba-iran-islamic-republic-of |access-date=2024-12-12 |website=datazone.birdlife.org}}</ref><ref name=":2">{{Cite web |last=hosseini |first=volghan |date=2024-04-02 |title=Dasht Arjan - Walking In Iran |url=https://www.walkinginiran.com/dasht-arjan/ |access-date=2024-12-12 |website=walkinginiran.com |language=en-US}}</ref>{{not in source|date=October 2025}}

UNESCO has recognized its special environmental features and designated it a Biosphere Reserve.<ref name=":0" /><ref name=":2" />

Scientific studies in limnology, hydrobiology, and submarine ecology have investigated the water and ecosystem conditions of the lake environments.<ref>{{Cite journal |last1=Mohammadi |first1=Zargham |last2=Mahdavikia |first2=Habib |last3=Raeisi |first3=Ezzat |last4=Ford |first4=Derek C. |date=2019-06-10 |title=Hydrogeological characterization of Dasht-e-Arjan Lake (Zagros Mountains, Iran): clarifying a long-time question |url=https://link.springer.com/article/10.1007/s12665-019-8351-8 |journal=Environmental Earth Sciences |language=en |volume=78 |issue=12 |pages=360 |doi=10.1007/s12665-019-8351-8 |bibcode=2019EES....78..360M |issn=1866-6299|url-access=subscription }}</ref>

==Species== The reserve's different terrain is home to numerous species. Montane, timber, and swamp ecosystems converge, hosting, alongside species from the Persian Gulf seacoast. The reserve is home to 263 documented species, including ''Hippolais languida''.{{cn|date=October 2025}}

The area is home to various ranges of species, including the 407 mammal species, 37 creeper species, 3 amphibian species, 10 fish species, and 47 other animal species.<ref>{{Cite journal |last1=Beyranvand |first1=Somayeh |last2=Kamali |first2=Zahra |date=December 2013 |title=Use and land cover change detection on Arjan lake Fars province, during 1987-2004 |url=https://sanad.iau.ir/en/Article/931219 |journal=Vol. 5 7 |volume=5 |issue=25 |pages=7 |issn=2008-4250}}</ref> In 2023, the Ruddy Shelduck (''Tadorna ferruginea'') was selected as the flagship species of Arjan Lake.<ref>{{Cite journal |last1=Ebrahimi |first1=Iman |last2=Ranjbaran |first2=Ali |title=Selecting a Flagship Species for Arjan International Wetland, Fars Province, Iran |journal=Journal of Wildlife and Biodiversity |volume=7 |issue=2 |pages=67–74 |year=2023 |doi=10.22120/jwb.2023.367318.1801 |doi-broken-date=3 November 2025 |url=https://www.wildlife-biodiversity.com/index.php/jwb/article/view/680}}</ref><ref>{{Cite web |title=با روش‌های علمی، آنقوت به عنوان گونه پرچم تالاب ارژن معرفی شد |url=https://www.mehrnews.com/news/6364569/ |publisher=Mehr News |date=24 December 2023 |language=fa}}</ref>

==See also== *Dasht-e Arzhan

== References == <!-- Inline citations added to your article will automatically display here. See en.wikipedia.org/wiki/WP:REFB for instructions on how to add citations. --> {{reflist}}

==External links== #[https://www.researchgate.net/figure/The-catchment-area-of-Dasht-e-Arjan-Lake_fig4_334169942 Dasht-e-Arjan-Lake]

{{Commons category}} {{WDPA|68012}} Category:Lakes of Iran Category:Lakes in Fars province