Caroline Haddon

Caroline Haddon (15 April 1837 - 13 March 1905) was a British philosophical writer. She was the sister-in-law of James Hinton, "the great influence of her life", and she wrote several works about Hinton and his thought.

Caroline Haddon was born 15 April 1837 in Finsbury, the daughter of John Haddon and Elizabeth Cort.

Haddon ran a girls' school in Dover. She paid for Havelock Ellis to pursue his study of medicine at St Thomas's Hospital. Together with her sister Margaret and Havelock Ellis, she championed Hinton's evolutionary mysticism within the Fellowship of the New Life. In a talk she gave to the Fabian Society, 'The Two Socialisms', she was the first at the society to use the word 'socialism'.

Haddon died 13 March 1905.

• (ed.) Philosophy and Religion: selections from the MSS. of J. Hinton by James Hinton, London: Kegan and Paul, 1881.
• A Law of Development: An Essay, London: J. Haddon, 1883
• The Larger Life: Studies in Hinton's Ethics, London: Kegan and Paul, 1886.
• Where does your interest come from?: a word to lady investors, 1886