The Guadalcanal fantail was formally described in 1931 by the American ornithologist Ernst Mayr based on specimens collected on the island of Guadalcanal in the Solomon Islands. Mayr considered the taxon as a subspecies of the brown fantail (now the Bougainville fantail) and coined the trinomial nameRhipidura drownei ocularis.[2][3] The specific epithet is Latin meaning "of the eyes".[4] The Guadalcanal fantail is now considered to be separate species. It is monotypic: no subspecies are recognised.[5]