CCDB → Bryophytes → Timmiaceae → Timmia
| Taxon name | Status | Median (n) |
| Timmia austriaca Hedw. | Accepted | 16 |
| Timmia megapolitana Hedw. | Accepted | 16 |
| Timmia austriaca None | Synonym of Timmia austriaca Hedw. | 16 |
| Timmia cucullata Michx. | Synonym of Timmia megapolitana Hedw. | 16 |
| Timmia bavarica Hessl. | Synonym of Timmia megapolitana subsp. bavarica (Hessl.) Brassard | 16 |