Sin-shumu-lishir (or Sin-shum-lishir), possibly was king of Assyria, or claimed the kingship, during the obscure years that followed the death of Ashurbanipal.

The reconstruction of the events occurring during this period is extremely difficult, because of the lack of sources.

He is credited of having reigned one year by the Uruk king list, preceding Sin-shar-ishkun. This must have been in or around 626 BC. Other texts from Babylonia confirm his rulership. It has been suggested, however, that he may have reigned, at least in part of Mesopotamia, for more than one year, e.g. from 632 to 626 BC (von Soden and others).

Assyrian kings

Sin-Schum-Lischir | Sin-shum-lishir