Don or DON may refer to

Ian A.C. Dejardin is an art historian and Director of the Dulwich Picture Gallery in Dulwich, southeast London, England. He succeeded Desmond Shawe-Taylor as Director in 2005 and was previously a Chief Curator at the Gallery from 1998.

Ian Dejardin holds an MA in the History of Art from the University of Edinburgh. He started a doctorate in art history at the University of Warwick, but then spent seven years developing a designer knitwear business in Cumbria. Subsequently he completed a postgraduate diploma in art gallery and museum studies at Manchester University. This was followed by curatorial appointments at the Royal Academy of Arts, London, and with English Heritage (London Region).

In 1998, Dejardin was appointed as a curator at the Dulwich Picture Gallery and was responsible for the Gallery's Permanent Collection of paintings, furniture and works on paper. Dejardin became the Gallery's director in 2005 coordinating several major exhibitions on an annual basis.

Thomas John "Tom" Thomson (August 5, 1877 – July 8, 1917) was an influential Canadian artist of the early 20th century. He directly influenced a group of Canadian painters that would come to be known as the Group of Seven, and though he died before they formally formed, he is sometimes incorrectly credited as being a member of the group itself. Thomson died under mysterious circumstances, which added to his mystique.

Tom Thomson was born near Claremont, Ontario to John and Margaret Thomson and grew up in Leith, near Owen Sound. In 1899, he entered a machine shop apprenticeship at an iron foundry owned by William Kennedy, a close friend of his father. He was fired from his apprenticeship by a foreman who complained of Thomson's habitual tardiness. Also in 1899 he volunteered to fight in the Second Boer War, but was turned down because of a medical condition. Thomson was reputed to have been refused entry into the Canadian Expeditionary Force for service in the First World War also. He served as a fire ranger in Algonquin Park during this time. In 1901, he enrolled in a business college in Chatham, Ontario but dropped out eight months later to join his older brother, George Thomson, who was operating a business school in Seattle. There he met and had a brief summer romance with Alice Elinor Lambert. In 1904, he returned to Canada, and may have studied with William Cruikshank, 1905–1906. In 1907 Thomson joined Grip Ltd., an artistic design firm in Toronto, where many of the future members of the Group of Seven also worked.