Micractaeon koptawelilensis is a species of land snail, terrestrial gastropod mollusks in the superfamily Achatinoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
Micractaeon koptawelilensis is the only species in the genus Micractaeon. Micractaeon is the type genus of the family Micractaeonidae, and Micractaeon is the only genus in the family Micractaeonidae. This family has no subfamilies.
The distribution of Micractaeon koptawelilensis includes tropical Africa: Ghana, Cameroon, eastern and southeastern Zaïre, Malawi, eastern Zambia, Uganda, Kenya and Tanzania.
The type locality is Mount Elgon, Kenya.
The width of the shell is 0.7-1.3 mm. The height of the shell is 1.1-2.2 mm.
Micractaeon koptawelilensis inhabits forests. These snails are found in leaf litter samples.