Sir William Henry Broadbent, 1st Baronet KCVO FRS FRCP (23 January 1835 – 10 July 1907) was an English neurologist who was a leading British authority in the field of cardiology as well as neurology. He also performed research involving diseases such as tuberculosis and cancer. In 1881 he was elected President of the London Medical Society and in 1887 President of the Clinical Society of London. Broadbent was a Physician-Extraordinary to Queen Victoria and Physician-in-Ordinary to King Edward VII and the Prince of Wales.