Chiromyiformes is an infraorder of strepsirrhine primates that includes the aye-aye from Madagascar and its extinct relatives.

The aye-aye is sometimes classified as a member of Lemuriformes, but others treat Chiromyiformes as a separate infraorder, based on their very reduced dental formula.

[1] Gunnell et al. (2018) reclassified the putative bat Propotto as a close relative of the aye-aye, as well as assigning the problematic strepsirrhine primate Plesiopithecus to Chiromyiformes.

[2] The molecular clock puts the divergence of Chiromyiformes and Lemuriformes at 50-49 million years ago.

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