Michael Porter

(male) English form of a common biblical name (meaning ‘who is like God?’ in Hebrew) borne by one of the archangels, the protector of the ancient Hebrews, who is also regarded as a saint of the Catholic Church. In the Middle Ages, Michael was regarded as captain of the heavenly host (see Revelation 12:7–9), symbol of the Church Militant, and patron of soldiers. He was often depicted bearing a flaming sword. The name is also borne by a Persian prince and ally of Belshazzar mentioned in the Book of Daniel. Since the early 1900s it has been one of the most enduringly popular boys' names in the English-speaking world. See also Michal.

English and Scottish: occupational name for the gatekeeper of a walled town or city, or the doorkeeper of a great house, castle, or monastery, from Middle English porter ‘doorkeeper’, ‘gatekeeper’ (Old French portier). The office often came with accommodation, lands, and other privileges for the bearer, and in some cases was hereditary, especially in the case of a royal castle. As an American surname, this has absorbed cognates and equivalents in other European languages, for example German Pförtner (see Fortner) and North German Poertner.