HMS Acanthus was a Flower-class corvette of the Royal Navy.
Acanthus was one of ten Flower-class corvettes ordered on 21 September 1939, in the fourth of a series of orders.
She was laid down at Ailsa Shipbuilding Company's Troon shipyard on 21 December 1939, was launched on 26 May 1941 and completed on 1 October 1941.
[2][3] In 1942, the vessel was transferred to the Norwegian armed forces in exile and became the Norwegian ship HNoMS Andenes.
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