Ilangai (disambiguation)
Ilangai is the Tamil name (இலங்கை - written in Tamil script) for the island of Sri Lanka.
Ilangai may also refer to:
- Ilanga impolita, a species of gastropod
- Ilanga illustris, a species of gastropod
- Ilanga, a genus of gastropods
- Ilanga incisura, a species of gastropod
- Ilankai Tamil Arasu Kachchi, a nationalist party from the Tamil part of Sri Lanka