Enneapterygius larsonae, known commonly as the Western Australian black-head triplefin, is a species of triplefin blenny in the genus Enneapterygius.

[2] It was described by the German ichthyologist Ronald Fricke in 1994.

[3] The specific name honours Helen K. Larson, the Curator of Fishes at the Museum and Art Gallery of the Northern Territory in Darwin, Australia, who collected the type.

[4]