Papilio antonio is a butterfly of the family Papilionidae. It is endemic to the Philippines.

The wingspan is 90–110 mm.Forewing above at the hindmargin with triangular white area, which forms the continuation of a large white area of the hindwing; both areas also present beneath. The hindwing beneath with a continuous row of pale yellow submarginal spots, the posterior spots more ochreous. The female quite similar to the male, the white areas somewhat larger. Very similar to Papilio noblei.

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