Marc J. Melitz is an American economist. He is currently a professor of economics at Harvard University.

Joseph Marc Milner is a Canadian military and naval historian, author of several books including one novel. He is Director of the Gregg Centre for the Study of War and Society at the University of New Brunswick.

Marc Monnier (December 7, 1829 – April 18, 1885) was a Swiss writer.

Marc Olden was an American author of mystery and suspense. He is perhaps best remembered for his mystery Poe Must Die, in which 19th-century American author Edgar Allan Poe appears as a protagonist. He was a prolific author, publishing forty books: two non-fiction and thirty-eight fiction.

Marc Quaghebeur is a Belgian poet and essayist. He is director of the Archives and Museum of Literature in Brussels. He has a truly Belgian surname. It derives from Dutch Kwagebeur and has been adapted to the French spelling tradition.

Marc Scott Zicree is an American science fiction author, television writer and screenwriter. Zicree has written for major studios and networks including Paramount, Universal, Disney, Sony/Columbia Tri-Star, MGM, New Line, CBS, NBC, ABC, Fox, WB, UPN, Showtime, PBS, Turner, USA Networks, Syfy, Discovery, Nickelodeon, the BBC, Marvel and NPR. His credits include Star Trek: The Next Generation, Deep Space Nine, The Twilight Zone, Babylon 5, Beauty and the Beast, Forever Knight, Sliders, Friday the 13th: The Series, Liberty's Kids, Super Friends, He-Man and the Masters of the Universe, Real Ghostbusters, The Smurfs and many others, as well as pilots for CBS, NBC, ABC and Showtime.

Marc Sumerak is a freelance comic book writer from Cleveland, Ohio. He graduated from Bowling Green State University in 2000 and worked as an editor at Marvel Comics before becoming a freelance writer. His credits include work on Avengers, Thor, Iron Man, Fantastic Four, Black Panther, Captain Marvel, Thunderbolts, Hulk, Sentinel, Agent X and many more. He was a member of the Marvel editorial team from 1999 to 2003, working alongside editor Tom Brevoort.

Marc Tyler Nobleman is an American author and speaker. His book Bill the Boy Wonder: The Secret Co-Creator of Batman is the first published biography of Bill Finger, the initially anonymous co-creator and original writer of Batman. It is the basis of the Hulu documentary Batman & Bill, which chronicles Nobleman’s nine-year campaign to get Finger’s name added to the official Batman credit line.

Marc Van de Mieroop is a noted Belgian Assyriologist and Egyptologist who has been full professor of Ancient Near Eastern history at Columbia University since 1996.

Marc Norman Wanamaker is an historical author, writing on early Los Angeles and Hollywood. He is the founder of Bison Archives, which manages research on the motion picture industry. He helped form and worked with the American Film Institute. He was a co-founder of the Los Angeles International Film Exposition and American Cinematheque.