Nicator is a genus of songbird endemic to Africa. It can also refer to:
the Hellenistic title Nicator or Nikator (, ), borne by: Seleucus I Nicator, general of Alexander the Great and founder of the Seleucid empire Demetrius II Nicator, king of the Seleucid empire Amyntas Nikator, Indo-Greek king Antiochus Nikator, Greco-Bactrian king HMS Nictator (1916), M-class destroyer during World War I HMS Nicator (J457), cancelled Algerine-class minesweeper during World War II