Pandemis ianus is a moth of the family Tortricidae. It is found in north Madagascar.

The male of this species has a wingspan of 21.5 mm. Its head is tawny fuscous, palus tawny, the thorax tawny ochreous, abdomen greyish fuscous.

The forewings are suboval with a rounded costa. They are light pinkish ochreous, glossy and strewn with fuscous grey. The hindwings are golden ochreous, the posterior third with a pink suffusion and irregularly transversed by rows of dark grey dots.

The genitalia of this species are close to Pandemis capnobathra.

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