Diamond Cove is a local service district and designated place in the Canadian province of Newfoundland and Labrador.

Diamond Cove is in Newfoundland within Subdivision J of Division No.

[2] As a designated place in the 2016 Census of Population conducted by Statistics Canada, Diamond Cove recorded a population of 46 living in 25 of its 26 total private dwellings, a change of -9.8% from its 2011 population of 51.

[1] Diamond Cove is a local service district (LSD)[3] that is governed by a committee responsible for the provision of certain services to the community.

[4] The chair of the LSD committee is Ronald Hardy.