| Ishme-Dagan | |
| King of Isin King of Sumer | |
| Native Lang1: | Akkadian |
| Native Lang1 Name1: | Išme-Dagān |
| Reign: | 19 regnal years 1953-1935 BC (MC) 1889-1871 BC (SC) |
| Predecessor: | Iddin-Dagān |
| Successor: | Lipit-Ištar |
| Royal House: | First Dynasty of Isin |
| Father: | Iddin-Dagān |
Ishme-Dagan (Akkadian: {{cuneiform|, Diš-me-Dda-gan, Išme-Dagān;[1] fl. c. 1889 BC — c. 1871 BC by the short chronology of the ancient near east) was the 4th king of the First Dynasty of Isin, according to the "Sumerian King List" (SKL). Also according to the SKL: he was both the son and successor of Iddin-Dagān. Lipit-Ištar then succeeded Išme-Dagān. Išme-Dagān was one of the kings to restore the Ekur.