Saint Tydfil's Hospital (Welsh: Ysbyty Sant Tydfil) in Merthyr Tydfil, Wales (at grid reference SO051064) started out life as part of the old Merthyr Workhouse, which was built in 1853. At this time it was known as 'The Infirmary', a name that it informally retained well into the latter part of the 20th century. It consisted of four men's rooms, four women's rooms, one 'lying-in' ward (maternity) and two recovery rooms. There was accommodation for 65 patients. A house surgeon was appointed in 1853 with a salary of £25. A nurse and porter (husband and wife), were also appointed. 1865 saw the appointment of an assistant nurse.