Ƙungiyar Bloomsbury tana nufin ƙungiyar masu fasaha, marubuta, da haziƙai waɗanda ke da alaƙa da gundumar Bloomsbury na London a farkon ƙarni na 20. An san ƙungiyar don avant-garde da ra'ayoyin ci gaba, kuma membobinta sun haɗa da fitattun mutane kamar Virginia Woolf, EM Forster, John Maynard Keynes, Lytton Strachey, Vanessa Bell, da Duncan Grant. An san su da sabbin abubuwa na adabi da fasaha, da kuma rayuwar su da ba ta dace ba da kuma halayen zamantakewa.