Papilio cacicus is a Neotropical butterfly of the family Papilionidae first described by Hippolyte Lucas in 1852.

Forewing with interrupted discal band, a variable cell-spot, rarely absent, a row of bluish grey postdiscal spots and a row of yellowish white submarginal ones, the last or the last few of the submarginal spots more or less orange: on the hindwing a yellowish white median band, a postdiscal row of blue spots and a submarginal row of yellowish white ones.

The 3 forms of the female are: female-f cacicus Luc., similar to the male; female f. zaddachi Dewitz, discal band of the forewing not interrupted and like the large cell-spot brownish orange, hindwing without discal band on the upper surface: female-f. nais R. & J. like female-f. zaddachi, but the markings of the forewing white.

The cell-spot of the forewing much more oblique than in the preceding subspecies, forming with the median vein an acute angle; discal band of the hindwing convex distally, posteriorly strongly narrowed; the tail narrow, non-spatulate.

[1] Papilio cacicus is an indicator species of primary mountain forest for instance in the Cordillera de la Costa montane forests in Venezuela and more generally in the tropical Andes.