|Location||Northland Region, North Island|
|Catchment area||46 hectares (110 acres)|
|Basin countries||New Zealand|
|Max. length||430 metres (1,410 ft)|
|Max. width||430 metres (1,410 ft)|
|Surface area||17.2 hectares (43 acres)|
|Max. depth||3.4 metres (11 ft)|
|Residence time||18 months|
|Surface elevation||39.6 metres (130 ft)|
Lake Rotokawau is a dune lake on the Aupouri Peninsula the Far North, New Zealand. The name is also used for lakes in the Kaipara District (Poutu Peninsula), Chatham Islands, in Bay of Plenty and near Lake Waikare in Waikato.
Lake Rotokawau is near Rotokawau Road, off State Highway 1 North of Kaitaia.
The lake catchment is predominately pasture (70%), scrub (30%) and planted forest. The lake itself has no major inflows or outflow. 
The Bushland Trust, working with the Department of Conservation and Northland Regional Council is undertaking restoration at Lake Rotokawau, as well as other nearby dune lakes, such as Lake Heather, Lake Rotoroa, Lake Ngatu, Lake Gem and Lake Ngakapua.
- "Lake Rotokawau (Pöuto) Management Plan" (PDF). Northland Regional Council.
- "Lake Rotokawau, Chatham Islands - NZ Topo Map". NZ Topo Map. Retrieved 2017-10-01.
- "Lake Rotokawau, Bay of Plenty - NZ Topo Map". NZ Topo Map. Retrieved 2017-10-01.
- "Lake Rotokawau, Waikato - NZ Topo Map". NZ Topo Map. Retrieved 2017-10-01.
- "Northland Lakes Ecological Status 2010". Northland Regional Council.
- "The Bushland Trust restoring the sweetwater Lake Ngatu, Lake Heather and Lake Rotoroa on the Aupouri Peninsula in Northland, New Zealand, nz". www.bushlandtrust.com. Retrieved 2018-12-26.
- Reed, A.W. (1975). Place names of New Zealand. Wellington: A.H. & A.W. Reed. p. 365.
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