| Wojciech Oczko | |
| Birth Date: | 1537 |
| Birth Place: | Warsaw |
| Death Date: | 26 December 1599 |
| Death Place: | Lublin |
| Occupation: | Physician |
Wojciech Oczko (also known as Ocellus) (1537, Warsaw – 26 December 1599 Lublin) – philosopher, doctor, Royal Secretary to King Sigismund II Augustus, and court physician to kings Sigismund II Augustus, Stephen Báthory, and Sigismund III Vasa. One of the founders of Polish medicine, he was a medical writer who studied syphilis and hot springs.
Oczko's father was the Warsaw cartwright Stanisław Oczko. Wojciech began his education at the town and cathedral school schools in Warsaw. In 1559 he began entered the Jagiellonian University, earning his baccalaureus in 1562. He returned to Warsaw for a time and taught at the cathedral school there. In 1565 he left the Polish capitol to study at the Universities of Padua and Bologna, where he earned a doctorate in medicine. He travelled to Spain and France, where he spent time in Montpellier. In 1569 Oczko returned to Warsaw and began to practice medicine at St. Martin's Hospital. He then served for a time as personal physician to the Cracow bishop Franciszek Krasiński, and from 1576–1582 (with some breaks) as the court physician to Stephen Báthory. On the king's recommendation, Oczko studied the mineral springs at Szkło (now Shklo, Ukraine) and Jaworów (now Yavoriv, Ukraine). At the end of his career, Oczko served as personal physician to Sigismund III Vasa. In 1598 Oczko moved to Lublin, where he died a year later.
In 1574 Oczko married Elżbieta Obrąpalska (widow of Stanisław Obrąpalski), and after her death, married again, this time to Jadwiga Umięcka in 1596. Neither marriage produced any children.
Oczko wrote two major works in Polish about anatomy and surgery, as well as dietetics, in the process formalizing a number of terms in Polish medical terminology. The publication date of Cieplic (1578) is symbolically considered to be the foundation of the sanatorium at Iwonicz-Zdrój, whose mineral waters are described in the work.