Arthur Grove Day (1904 in Philadelphia – March 26, 1994 in Hawaii) was a writer, teacher, and authority on the history of Hawaii, the founding editor in chief of Pacific Science: A Quarterly Devoted to the Biological and Physical Sciences of the Pacific Region.^[1]

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Day earned his bachelor's and graduate degrees from Stanford University, where he befriended John Steinbeck. He moved to Hawaii in 1944 and was a professor in the English department of the University of Hawaii at Manoa, where he taught a course in "Literature of the Pacific". He chaired the English department from 1948 to 1953.^[2] In 1979, he won the Hawaii Award for Literature.^[3]

Day was a scholar of the South Pacific and wrote or edited more than fifty books, including^[4]

• History Makers of Hawaii
• Hawaiian Reader
• Mark Twain’s Letters from Hawaii
• Best South Sea Stories
• Mad About Islands: Of a Vanished Pacific, a collection of biographical essays on famous writers who spent time in the Pacific, including Jack London, Herman Melville, and Robert Louis Stevenson
• Rascals in Paradise, co-written with James Michener