Eomyctophum ("dawn Myctophum") is an extinct genus of lanternfish that inhabited the Peri-Tethys region and later the Paratethys Sea from the Eocene to the Oligocene. Its remains are known from throughout eastern Europe & western Asia in both the Caucasus and Carpathians. Fossils of this genus comprises both articulated skeletons and otoliths suggesting it was a particularly common genus of fish.
It is the only member of the extinct subfamily Eomyctophinae, although Eokrefftia may also belong in it. The earliest known member of the genus was identified from the Early Eocene of Italy in 2025, millions of years earlier and further west than the other species.
The following species are known:
The former species E. gracilis and E. limicolus are now placed in the blackchin Beckerophotus and the lanternfish Oligophus respectively.