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

In the colder months, sealife observed in the bay area range from seals, humpback whales and several varieties of bird.

Rattling Brook has a humid continental climate[2] (Köppen Dfb) with moderately warm summers and cold, snowy winters.

For its latitude in Eastern Canada, Rattling Brook has highly moderated winters due to the proximity to the Atlantic Ocean.

[4] The community has a park at the base of Rattling Brook Falls, a 140-metre waterfall beneath a natural rock formation.