Flexiseps crenni is a species of skink, a lizard in the family Scincidae.

[1][2] The specific name, crenni, is in honor of ophthalmologist Louis Crenn, who presented the holotype to Mocquard.

[3] The preferred natural habitat of F. crenni is forest.

[1] F. crenni has very short legs with a reduced number of digits.

[2] The holotype has a snout-to-vent length (SVL) of 11.5 cm (4.5 in).