Annia
Annia may refer to:
- Annia gens, an ancient Roman clan
- Any Roman woman of the gens, including:
- *Paculla Annia, a priestess involved in the suppression of the Bacchanalia in 186 BC
- Via Annia, a Roman road in Cisalpine Gaul named for a member of the gens Annia
- Annia (insect), a disused synonym for a genus of praying mantises