Satyrium prunoides is a butterfly of the family Lycaenidae.

It is found in the Russian Far East (Altai, Sayan, Transbaikalia, Amur, Ussuri), Mongolia, north-eastern China and Korea.

Smaller than pruni the male above usually quite unicolorous, without any anal red.

The white line on the hindwing beneath more distinct, straighter and at the costa a little nearer the base, male without scent-spot.

— from the Altai eastward, in Amurland, Corea and probably also Japan [3]