Sir Charles Day Rose, 1st Baronet (23 August 1847 - 20 April 1913) was a British-Canadian businessman, race horse breeder, yachtsman, and Liberal politician.
Born in Montreal, he was the second son of Sir John Rose, 1st Baronet. His father moved from Scotland to Canada, where he was successively Solicitor General, Minister of Public Works and Minister of Finance.
Rose was educated at Montreal High School and Rugby School. He was commissioned in the Montreal Garrison Artillery, and was involved in repelling the Fenian raid of 1870. He subsequently entered business as a partner in an American bank based in the City of London and part of the syndicate promoting the Canadian Pacific Railway.
In 1871, he married Eliza McClean and they had four sons and one daughter. His two eldest sons both died in the Second Boer War.
In the late 1880s and early 1890s, he was a leading horse race breeder, based at Newmarket, Suffolk. His most successful horse was Ravensbury, but it was overshadowed by Isinglass, owned by Harry McCalmont, Conservative MP for Newmarket. He was also the owner and breeder of the influential stallion Cyllene. He was elected a member of the Jockey Club in 1891. In 1893, Rose took up yachting, competing in a number of competitive events and was a member of the Royal Victoria Yacht Club.
Rose was created a baronet of "Hardwick House in the Parish of Whitchurch in the County of Oxford" on 19 July 1909. He had completed the purchase of Hardwick House shortly beforehand. Rose is said to have been one of the models for "Toad" of Toad Hall in the Wind in the Willows by Kenneth Grahame and Grahame's illustrator E. H. Shepherd used parts of Hardwick House in his drawings.