Hannah Cullwick (26 May 1833 – 9 July 1909) was a diarist who revealed less-known aspects of the relations between Victorian servants and their masters.
Working in domestic service, she caught the attention of Arthur Munby, a prominent barrister and philanthropist, who was making a close study of the conditions of working women.
To escape poverty, she married him reluctantly and secretly in 1873, but it was an unconventional partnership, with role-playing, as documented in both their diaries, which have survived, along with letters and photographs.