Joseph Kidd (15 February 1824 – 20 August 1918) was a doctor, author, and physician to Benjamin Disraeli.
Joseph Kidd was born in Limerick, Ireland, on 15 February 1824, one of at least fifteen children of Thomas Keane Kidd, a merchant. After medical training locally and in Dublin he moved to London to join the Homoeopathic Hospital, and then almost immediately returned to Ireland to help victims of the Potato Famine. Returning to London he left the Homeopathic Hospital, stopped prescribing homeopathic treatments, and established successful practices in Blackheath and the City of London. In 1850 he married Sophia McKern, a childhood friend, with whom he had eight children, including Percy Marmaduke Kidd, the eldest. Sophia died in 1872, and in 1875 Kidd married Frances Octavia Rouse, with whom he had another seven children. He continued working until 1912, when he was nearly 90 years old and died aged 94 on 20 August 1918, in Hastings, Sussex.
Among his published writings are: