Eru Bay

{{Short description|Bay in Estonia}}

File:Mohni Vaindloo Uhtju.png

Eru Bay ({{langx|et|Eru laht}}, also {{langx|et|Mungalaht}}) is bay in Kuusalu Parish (Harju County) and Haljala Parish, Lääne-Viru County in Estonia; the bay is part of Gulf of Finland. Area of the bay is 7656 ha.{{cite web |title=EELIS Infoleht |url=https://infoleht.keskkonnainfo.ee/default.aspx?state=7;68547593;est;eelisand;;&comp=objresult=veekogu&obj_id=-1720842080 |website=infoleht.keskkonnainfo.ee |accessdate=22 March 2020}}

The bay is bordered by Pärispea Peninsula and Käsmu Peninsula.

Loobu River drains into Eru Bay.