Aileen Palmer (6 April 1915 – 21 December 1988) was a British Australian poet and diarist. She worked as an interpreter during the Spanish Civil War for a mobile hospital and later in an ambulance unit in London during The Blitz. With a history of institutionalisation for various mental breakdowns, her diaries chart her exploration of her own sexuality and mental disease. Among her papers are many unpublished novels and an autobiographical compilation, which form a notable collection for scholars to evaluate both gender identities and mental illness in her era.