Lipit-Ishtar (Akkadian: Lipit-Ištar; c. 1934-1924 BC (MC) was the 5th king of the First Dynasty of Isin, according to the Sumerian King List (SKL).

Also according to the SKL: he was the successor of Išme-Dagān.

Some documents and royal inscriptions from his time have survived, however, Lipit-Ištar is mostly known due to the Sumerian language hymns that were written in his honor, as well as a legal code written in his name (preceding the famed Code of Hammurabi by about 100 years)—which were used for school instruction for hundreds of years after Lipit-Ištar's death.

The annals of Lipit-Ištar's reign recorded that he also repulsed the Amorites.

This ancient Near East biographical article is a stub.