Goniobranchus gleniei is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

[2][3] This species was described from the inner harbour, Trincomalee and Cottiar, opposite Fort Fredrick, Sri Lanka.

[4] Goniobranchus gleniei is a chromodorid nudibranch with a continuous, sinuous black or deep purple line all round the mantle, outside the gills and rhinophores.

The outer part of the mantle is white with a faint submarginal grey line.

The inner part of the mantle is golden-brown with irregular black spots.