Istar
Istar, iSTAR, or variants may refer to:

 Intelligence, surveillance, target acquisition, and reconnaissance
 Ištar or Ishtar, the Assyrian and Babylonian goddess of fertility, war, love, and sex
 Istar (Dragonlance), a fictional city in the Dungeons & Dragons game
 i*, a software modeling language
 Istari, the wizards in J. R. R. Tolkien's fictional world

See also
 Ishtar (disambiguation)
 Star One (disambiguation) 
 One star (disambiguation)