Phyllonorycter ulmifoliella is a moth of the family Gracillariidae.

Forewings golden brownish; a shining white median streak from base to 2/5, dark margined above; an ill defined white dorsal spot at 1/3; a somewhat angulated median fascia, three posterior costal and two dorsal triangular spots shining white, anteriorly dark margined; a black apical dot.

The larva is yellow-green; dorsal line greenish-grey; head pale brown.

There are two generations per year with adults on wing in May and again in August.

This article relating to moths in genus Phyllonorycter is a stub.