Neolycaena rhymnus is a butterfly of the family Lycaenidae.

It is found from Ukraine and southern and central Russia to the southern Ural Mountains, Zauralye, the western and southern Altai Region, the Sayan Mountains and Kazakhstan.

Seitz gives this description - T. rhymnus Ev.

The underside irrorated with numerous white short dashes, which are partly placed in rows and partly irregularly dispersed.

The larvae feed on Caragana frutex.