Neptis trigonophora, the barred sailer, is a butterfly of the family Nymphalidae.

Adults are on the wing possibly year round with peak from March to April.

[1] The larvae feed on Paullinia pinnata.

[2] Recognised subspecies:[2] It is a member of the Neptis agatha species group.

(48 e) is also near Neptis nysiades, but discal spot 4 of the forewing is small and triangular; the cell of the forewing is without markings above.