Laothoe populeti is a species of moth of the family Sphingidae.

It is found from eastern Turkey and Armenia, through north-eastern Iraq, the Iranian plateau and the central Asian republics of Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, Kazakhstan and north-western China.

Adults have been recorded from April to May and again from July to August.

The larvae feed on Populus and Salix species.

This Smerinthini-related article is a stub.