Joseph (Hebrew יוֹסֵף, "Yosef"; Greek: Ἰωσήφ) is a figure in the Gospels, the husband of the Virgin Mary and the earthly father of Jesus Christ (in distinction to God the Father, his "heavenly father"). In Roman Catholic, Eastern Orthodox and Anglican Christian traditions he is regarded as Saint Joseph.

The Pauline epistles, generally considered the earliest extant Christian records, make no reference to Jesus' father; nor does the Gospel of Mark, generally considered the first of the gospels. The first appearance of Joseph is therefore in the gospels of Matthew and Luke. Each contains a genealogy of Jesus tracing his ancestry back to King David, but the two are from different sons of David; Matthew follows the major royal line from Solomon, while Luke follows a minor line from Nathan, another son of David and Bathsheba. Consequently all the names between David and Joseph are different. According to Matthew "Jacob was the father of Joseph," while according to Luke, Joseph, or possibly Jesus, is said to be "of Heli." Some scholars reconcile the genealogies by viewing the Solomonic lineage as Joseph's major royal line, and the Nathanic lineage in Luke to be Mary's minor line.

Professor Joseph Jao-yiu Sung, SBS (Chinese: 沈祖堯; born 1959, Hong Kong) is the Vice-Chancellor of the Chinese University of Hong Kong (CUHK),. He was the Associate Dean of the Faculty of Medicine, the Chair Professor of the Department of Medicine and Therapeutics of the Chinese University of Hong Kong, and the Head of the Shaw College.

Professor Sung received his MBBS from the University of Hong Kong in 1983, and obtained Doctor of Philosophy from the University of Calgary and Doctor of Medicine from the Chinese University of Hong Kong in 1992 and 1997 respectively. He joined the Faculty of Medicine of CUHK in 1992 and was promoted to the rank of Professor of Medicine and Therapeutics in 1998. He was appointed to the Head of the Shaw College in 2007.

Professor Sung has published over 500 full scientific articles in the foremost journals and also has reviewed more than 15 prestigious journals. His contributions during the fight against SARS outbreak were particularly impressive to the Hong Kong community.