Lake Notoro (能取湖, Notoro-ko / Notori-ko), also Lake Notori or Notoro Lagoon,[1] is a coastal lagoon by the northern shore of Abashiri, Hokkaidō, Japan.[2] It is included in Abashiri Quasi-National Park.
It is the 13th-largest lake in Japan. It is about 2 km (1.2 mi) northwest of Lake Abashiri and 15 km (9.3 mi) east of Lake Saroma (also a coastal lagoon).
To the NW of Lake Abashiri lie the Notoro Lagoon (32 km in circumference and 58 sq km in area) and the Saroma Lagoon (72 km in circumference and 149 sq km in area).