Two ships of the Royal Navy have been named HMS Marguerite:
was an launched in 1915 and transferred to the Royal Australian Navy becoming HMAS Marguerite in 1919 was a launched in 1940 she became the civilian ship Weather Observer in 1947
Fictional ships HMS Marguerite, author C.S. Forester has Horatio Hornblower serving on a fictional HMS Marguerite in The Hand of Destiny