Euryglottis davidianus is a moth of the family Sphingidae.

It is known from Ecuador and western Peru.

It is similar to Euryglottis aper but can be distinguished by the paler head paler smaller yellow abdominal spots and straighter subbasal and discal lines on the forewing upperside.

Adults have been recorded in March and April.

This Sphinginae-related article is a stub.