八郎潟
thumb|八郎潟調整池(寒風山展望台付近より撮影)
thumb|八郎潟防潮水門
thumb|経緯度交会点
thumb|八郎潟の夕景

八郎潟（はちろうがた）は、秋田県にある湖。二級河川馬場目川水系に属する。かつては面積220km2と、日本の湖沼面積では琵琶湖に次ぐ第2位であったが、大部分の水域が干拓によって陸地化され、陸地部分が大潟村になった。現在では日本の湖沼において18位の面積である。八郎湖や、八郎潟残存湖といった別名でも呼ばれる。

狭義には、南東部の八郎潟調整池のことを指し、現在「八郎潟」として示されるデータの多くは、ここで以下に掲げた表を含めて「八郎潟調整池」のものである。

広義には、干拓前の八郎潟の範囲を反映した八郎潟調整池、東部承水路、西部承水路の総称である。2007年12月、この範囲が「八郎湖」として湖沼水質保全特別措置法の指定湖沼となった。
thumb|八郎潟調整池(寒風山展望台付近より撮影)
UNK
thumb|八郎潟防潮水門
UNK
thumb|経緯度交会点
UNK
thumb|八郎潟の夕景
UNK
Q81863
秋田県
LOC
Q23397
湖
Concept
Q11371756
二級河川
Concept
None
馬場目川
UNK
Q712226
km2
Concept
Q200239
琵琶湖
LOC
Q106259
干拓
Concept
Q427912
大潟村
LOC
Q2024
2007年
Concept
Q11563254
湖沼水質保全特別措置法
Concept
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
Q1364781
八郎潟
LOC
2022-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
22
DATE
2020-02-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2
DATE
2020-02-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2
DATE
2018-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
18
DATE
2007-12-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2007年12月
DATE
+220^^http://www.w3.org/2001/XMLSchema#decimal
220
NUMBER
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
+18^^http://www.w3.org/2001/XMLSchema#decimal
18
NUMBER
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