Fabia may refer to:
- Škoda Fabia, an automobile
- Fabia (gens), an Ancient Roman patrician family
- Fabia, the daughter of Marcus Fabius Ambustus
- Fabia (given name), an Italian feminine given name derived from masculine Fabio
- Fabia Eudokia, a Byzantine empress
- Fabia (crab), a kind of crabs from the family of the Pinnotheridae
- Fabia (Latium), an antic city in Latium
- Fabia Sheen, a fictional character from the Bakugan franchise