List of Famous people born on September 12nd

Alexander L. Wolf is a Computer Scientist known for his research in software engineering, distributed systems, and computer networking. He is credited, along with his many collaborators, with introducing the modern study of software architecture, content-based publish/subscribe messaging, content-based networking, automated process discovery, and the software deployment lifecycle. Wolf's 1985 Ph.D. dissertation developed language features for expressing a module's import/export specifications and the notion of multiple interfaces for a type, both of which are now common in modern computer programming languages.

Jerzy Wójcik was a Polish cinematographer, author of screenplays and film and television director, professor of University of Silesia in Katowice and Leon Schiller National Higher School of Film, Theatre and Television in Łódź.

James Francis Bernard, 4th Earl of Bandon, KP, was a British Deputy Lieutenant in Ireland and Representative Peer. Lord Bandon was a cousin of the Earl of Middleton, who was head of the southern Irish Unionist Alliance at the time of the Anglo-Irish War, 1919–21.

Alfred Abraham Knopf Sr. was an American publisher of the 20th century, and founder of Alfred A. Knopf, Inc. His contemporaries included the likes of Bennett Cerf and Donald Klopfer, and Frank Nelson Doubleday, J. Henry Harper and Henry Holt. Knopf paid special attention to the quality of printing, binding, and design in his books, and earned a reputation as a purist in both content and presentation.

Jester Naefe (1924–1967) was an Austrian stage and film actress. She became a leading star of German cinema in the 1950s, but was forced to retire at the height of her fame due to illness.