Burak Eldem is a Turkish writer/researcher and journalist.

Eldem is the author of the best-selling 2012: Appointment With Marduk, a book on hypothetical Planet X, which suggests an orbital period of 3661 solar years and a return date in 2012. Eldem also suggests that the number 3661 was written as "three wedges" with cuneiform in Sumerian sexagesimal mathematics: One wedge each for 3600's, 60's and units digits. This cuneiform sign, claims Eldem, was misinterpreted by Jewish exiles in Babylon and the enigmatic 666 was created: the Number of the Beast was actually the number of solar years in Marduk's orbital period.