Sir Philip Sydney Jones (15 April 1836 – 18 September 1918) was an Australian medical practitioner and University of Sydney vice-chancellor 1904–1906.
Jones was born in Sydney, the second son of David Jones, a Welsh immigrant who founded the department store David Jones Limited in 1838, and his second wife Jane Hall, née Mander. Jones was educated at private schools under William Timothy Cape, T. S. Dodds (in Surry Hills) and Henry Cary (in Darling Point), and then went to London in 1853 to study medicine at University College. During his course he took the medals for anatomy and medicine, graduated M.B. in 1859, M.D. in 1860, and became a fellow of the Royal College of Surgeons in 1861. Jones was awarded the Fellowes gold medal given to the most proficient student in clinical knowledge. He married Hannah Howard Charter in 1863.
Jones was house surgeon and physician and a resident medical officer at University College hospital for a period, and then went to Paris, where he continued his studies in medicine and surgery for some months. Jones returned to Sydney in 1861, and was an honorary surgeon at the Sydney infirmary, afterwards the Sydney hospital, for 14 years, and also carried on a general practice in College Street, Sydney. Jones was the first surgeon in Sydney to remove an ovarian tumour successfully. In 1876 Jones gave up general practice, and established himself as a consultant physician. Jones went to Europe for about three years in 1883, and spent much time studying developments in medicine and in hospital practice. Returning to Sydney he was appointed an honorary consulting physician to the Royal Prince Alfred Hospital, and was then considered to be the leading physician in Sydney. Jones was unanimously elected president of the third intercolonial medical congress held in Sydney in 1892, and in 1896 and 1897 he was president of the New South Wales branch of the British Medical Association. In addresses to these bodies he stressed the value of fresh air, pure food, and uninfected milk, and he was quick in realizing the value of X-rays, and the promise of results to be obtained from serum therapy, then in its infancy. He was unceasing in his efforts for the effective treatment of tuberculosis (consumption), and was a pioneer in New South Wales in the use of open air treatment. He was responsible for the opening of the Queen Victoria homes at Thirlmere and at Wentworth Falls for patients in the early stages of tuberculosis, and spent much time in the administration of these institutions. Jones had been one of the founders of the Royal Prince Alfred hospital and was a member of the board from 1878 to 1883. Rejoining the board of this hospital in 1904, he was chairman of its medical board for many years.