| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Nyctemera insulare | (Boisduval, 1833) | species | Accepted | ||
| Nycteola mauritia | (Joannis, 1906) | species | Accepted | ||
| Ochyrotica rufa | Arenberger, 1987 | species | Accepted | ||
| Oedebasis longipalpis | (Berio, 1959) | species | Accepted | ||
| Oedebasis ovipennis | Hampson, 1902 | species | Accepted | ||
| Ogmocoma pharmacista | Meyrick, 1924 | species | Accepted | ||
| Olethreutes symmictopa | (Meyrick, 1930) | species | Accepted | ||
| Omiodes indicata | (Fabricius, 1775) | species | Accepted | ||
| Ophiusa tirhaca | (Cramer, 1777) | species | Accepted | ||
| Opogona autogama | (Meyrick, 1915) | species | Accepted | ||
| Opogona incorrectella | Viette, 1957 | species | Accepted | ||
| Opogona iridogramma | Meyrick, 1924 | species | Accepted | ||
| Opogona omoscopa | (Meyrick, 1893) | species | Accepted | ||
| Opogona phaeochalca | Meyrick, 1908 | species | Accepted | ||
| Opogona sacchari | (Bojer, 1856) | species | Accepted | ||
| Orophia thesmophila | (Meyrick, 1930) | species | Accepted | ||
| Orphanostigma abruptalis | (Walker, 1859) | species | Accepted | ||
| Orphanostigma haemorrhoidalis | (Guenée, 1854) | species | Accepted | ||
| Orthonama quadrisecta | Herbulot, 1954 | species | Accepted | ||
| Oruza divisa | (Walker, 1862) | species | Accepted | ||
| Orygocera amphitricha | (Meyrick, 1910) | species | Accepted | ||
| Orygocera lenobapta | Meyrick, 1924 | species | Accepted | ||
| Orygocera tryphoxantha | (Meyrick, 1930) | species | Accepted | ||
| Oxycrates xanthopeda | Meyrick, 1930 | species | Accepted | ||
| Oxyptilus epidectes | Meyrick, 1908 | species | Accepted |