Harriet Arbuthnot (10 Satumba 1793 <unk> 2 Agusta 1834) ita ce farkon karni na 19 na Turanci, mai kula da zamantakewa da kuma siyasa a madadin jam'iyyar Tory. A lokacin 1820 ta kasance "abokiyar mata mafi kusa" na jarumi na Waterloo da Firayim Ministan Birtaniya, Duke na Wellington. Ta ci gaba da dogon wasiƙa da haɗin gwiwa tare da Duke, duk abin da ta rubuta a cikin littattafan tarihinta, wanda aka yi amfani da shi sosai a duk tarihin tarihin Duke na Wellington. Tambaya: Yaushe ne Harriet Arbuthnot ya mutu?
2 ga watan Agusta 1834