Phanias
Phanias may refer to:
- A historic person:
- Phanias of Eresus in Lesbos, Greek philosopher
 - Phanias (Stoic philosopher), a Stoic philosopher, disciple of Posidonius
 - Phanias (Athenian Commander), an Athenian naval commander during the Corinthian War
 
 - Phanias (spider), a genus of jumping spiders