Propotto is an extinct monotypic genus of strepsirrhine primate from the early Miocene of Kenya.

[1] However, the lorisid classification of Propotto was questioned by Walker (1969), who argued that it represented a fruit bat of the family Pteropodidae, noting that the second premolar was smaller than those of lorises and that the mandibular corpus was also unlike those of lorisiforms in deepening anteriorly and having a deep masseteric fossa (Simpson accepted Walker's refutation of the lorisid placement of Propotto).

[3][4] In a paper published in 2018, the late Gregg Gunnell and his colleagues cast doubt on the pteropodid classification of Propotto, noting that features cited by Walker (1969) to exclude the genus from Lorisidae are also found in the Eocene strepsirrhine Plesiopithecus from the Fayum Depression, Egypt.

For example, they pointed out that the laterally compressed and presumably highly procumbent lower anterior tooth excluded Propotto from Chiroptera and instead occurs in Plesiopithecus and the aye-aye.

The results of the cladistic analysis of Gunnell et al. (2018) recovered Propotto as the most basal member of Chiromyiformes, supporting the hypothesis that lemurs migrated to Madagascar in two distinct waves from Africa, perhaps in the late Cenozoic.