O. flavescens
# O. flavescens

O. flavescens may refer to:

* Obolcola flavescens, a geometer moth
* Oligoryzomys flavescens, a southern South American rodent
* Ommatius flavescens, a robber fly
* Onchidella flavescens, a sea slug
* Opistophthalmus flavescens, a burrowing scorpion
* Orchesella flavescens, a slender springtail
* Oria flavescens, an owlet moth
* Orthosia flavescens, an owlet moth
* Otaria flavescens, a sea lion
* Ozarba flavescens, an owlet moth
