HMS Mermaid was a Mermaid-class sixth-rate frigate of the Royal Navy.

She was first commissioned in April 1761 under Captain George Watson and built in Blaydes Yard in Kingston-Upon-Hull.

On 5 June, 1777 she recaptured "2 Betsys" off Cape Negro, Nova Scotia.

[5] On 8 July 1778, the 50 gun Sagittaire and the 64-gun Fantasque forced HMS Mermaid to beach herself at Cape Henhlopen.

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