Ethmia timberlakei is a moth in the family Depressariidae. It is found in California, United States.
The length of the forewings is . The ground color of the forewings is dark gray, sparsely to densely irrorated (speckled) with scattered white scales. The ground color of the hindwings is uniform pale gray.[1]
The larvae feed on Phacelia ramosissima var. suffrutescens.