HMS Rhyl was a Rothesay-class or Type 12M anti-submarine frigate of the Royal Navy, launched by Lady Macmillan on 23 February 1959 and commissioned in October 1960.

[2][a] A twin 4.5-inch (113 mm) Mark 6 gun mount was fitted forward, with 350 rounds of ammunition carried.

Seacat was not yet ready, and Rhyl was completed with a single L/60 Bofors 40 mm mount aft as a temporary anti-aircraft armament.

HMS Rhyl returned to UK waters in 1967, eventually decommissioning in Plymouth to undergo a major refit and upgrade to a Leander-like specification.

In April 1982, Rhyl was ordered south for Operation Corporate, but mechanical failure prevented the deployment, so she acted as Ascension Island guardship until July 1982.

However, she was intentionally scuttled on account of severe weather on 27 July 1985.The wreck lies at a depth of more than 600m at coordinates = 49°18′25″N 11°18′11″W / 49.3069°N 11.3030°W / 49.3069; -11.3030.