| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Phyllonorycter nipponicella | (Issiki, 1930) | species | Accepted | ||
| Phyllonorycter nivalis | Deschka, 1986 | species | Accepted | ||
| Phyllonorycter nonfasciella | (Chambers, 1871) | species | Synonym | ||
| Phyllonorycter obandai | De Prins & Mozuraitis, 2006 | species | Accepted | ||
| Phyllonorycter obscura | (Dufrane, 1960) | species | Misapplied | ||
| Phyllonorycter obscuricostella | (Clemens, 1859) | species | Accepted | ||
| Phyllonorycter obsoleta | (Frey & Boll, 1873) | species | Accepted | ||
| Phyllonorycter obsoletella | (Chambers, 1878) | species | Synonym | ||
| Phyllonorycter obtusifoliella | Deschka, 1974 | species | Accepted | ||
| Phyllonorycter obumbrata | (Sorhagen, 1900) | species | Synonym | ||
| Phyllonorycter occitanica | (Frey & Boll, 1876) | species | Accepted | ||
| Phyllonorycter ochreojunctella | (Klimesch, 1942) | species | Accepted | ||
| Phyllonorycter ocimellus | De Prins, 2012 | species | Accepted | ||
| Phyllonorycter olivaeformis | (Braun, 1908) | species | Accepted | ||
| Phyllonorycter oliviformis | (Meyrick, 1912) | species | Synonym | ||
| Phyllonorycter ololua | De Prins, 2012 | species | Accepted | ||
| Phyllonorycter olympica | Deschka, 1983 | species | Accepted | ||
| Phyllonorycter ontario | (Freeman, 1970) | species | Synonym | ||
| Phyllonorycter oreas | Kumata, 1973 | species | Accepted | ||
| Phyllonorycter oregonensis | (Walsingham, 1889) | species | Accepted | ||
| Phyllonorycter orientalis | (Kumata, 1963) | species | Accepted | ||
| Phyllonorycter ostryae | (Kumata, 1963) | species | Accepted | ||
| Phyllonorycter ostryaefoliella | (Clemens, 1859) | species | Accepted | ||
| Phyllonorycter ostryifoliella | (Meyrick, 1912) | species | Synonym | ||
| Phyllonorycter ovalifoliae | Kumata, 1973 | species | Accepted |