O. fenestrata
# O. fenestrata

O. fenestrata may refer to:

* Ocenebra fenestrata, the fenestrate oyster drill, a sea snail species in the genus Ocenebra found in South Africa
* Oliva fenestrata, Röding, 1798, a sea snail species in the genus Oliva
* Ortalis fenestrata, a picture-winged fly species
