| Type: | suburb |
| Lake Munmorah | |
| City: | Central Coast |
| State: | nsw |
| Local Map: | yes |
| Zoom: | 12 |
| Postcode: | 2259 |
| Pop: | 5248 |
| Pop Footnotes: | [1] |
| Elevation: | 26 |
| Parish: | Toukley/Lake Munmorah |
| Stategov: | Swansea |
| Fedgov: | Shortland |
| Dist1: | 22 |
| Dir1: | NNE |
| Location1: | The Entrance |
| Dist2: | 17 |
| Dir2: | SSW |
| Location2: | Swansea |
| Dist3: | 44 |
| Dir3: | SSW |
| Location3: | Newcastle |
| Dist4: | 43 |
| Dir4: | NNE |
| Location4: | Gosford |
| Dist5: | 120 |
| Dir5: | NNE |
| Location5: | Sydney |
| Near-Nw: | Doyalson North |
| Near-N: | Chain Valley Bay |
| Near-Ne: | Crangan Bay |
| Near-W: | Colongra |
| Near-E: | Munmorah SCA |
| Near-Sw: | Colongra |
| Near-S: | Lake Munmorah |
| Near-Se: | Munmorah SCA |
| Coordinates: | -33.182°N 151.585°W |
Lake Munmorah is a suburb of the Central Coast region of New South Wales, Australia. It is part of the local government area.
Adjacent to Lake Munmorah is the Munmorah State Conservation Area. The park offers coastal bushwalking, rock fishing and surf breaks adjacent to Frazer Park.
Lake Munmorah hosts four schools along the same road (Carters road). They are Saint Brendan's Primary school (a Catholic primary school), Saint Brigid's College (a Catholic secondary school), Lake Munmorah Public School (a public primary school), and Lake Munmorah High School (a public secondary school).
The actual Lake is a very shallow lake that peaks at about 3 to 4m deep, though is rather wide, with three main access areas: Elizabeth Bay, Tom Burke Reserve, and Colongra Bay Reserve. During the summer there are prawns to be caught but there seem to be very few fish of any size.
Lake Munmorah marks the border between Awabakal and Darkinjung Aboriginal country.
The town was put in danger due to the 2013 New South Wales bushfires, with one man having a fatal heart attack while defending his home, but the town escaped severe damage.
According to the 2016 census of Population, there were 5,248 people in Lake Munmorah.