Lago dell'Accesa
{{Short description|Lake in Tuscany, Italy}}
{{Infobox lake
| name = Lago dell'Accesa
| image =Cratere del lago dell'Accesa.jpg
| caption =Lago dell'Accesa, crater
| alt = A vertical shot of a turquoise-blue lake
| location = Massa Marittima, Province of Grosseto, Tuscany
|pushpin_map=Tuscany
| coords = {{coord|42|59|17.70|N|10|53|43.78|E|type:waterbody_region:IT_source:itwiki|display=inline,title}}
| type =
| inflow = Bruna
| outflow = Bruna
| catchment =
| basin_countries = Italy
| length =
| width =
| area = {{convert|0.14|km2|abbr=on}}
| depth =
| max-depth =
| volume =
| residence_time =
| shore =
| elevation = {{convert|157|m|abbr=on}}
| frozen =
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}}
Lago dell'Accesa is a lake at Massa Marittima in the Province of Grosseto, Tuscany, Italy. At an elevation of 157 m, its surface area is 0.14 km². A number of ruins from the Etruscan civilization have been found in and around the lake.{{Cite book |last=Miller |first=Paul M. |url=https://www.google.com/books/edition/Continuity_and_Change_in_Etruscan_Domest/6kxmEAAAQBAJ?hl=en&gbpv=0 |title=Continuity and Change in Etruscan Domestic Architecture |date=2017-04-30 |publisher=Archaeopress Publishing Ltd |isbn=978-1-78491-581-0 |pages=43 |language=en}}