| Tetrarrhena | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Clade: | BOP clade |
| Subfamily: | Oryzoideae |
| Tribe: | Ehrharteae |
| Genus: | Tetrarrhena R.Br. |
Tetrarrhena is a genus of grasses. It includes six species native to eastern and southern Australia including Tasmania.