Yanam has seven base vowels: /a, e, ɛ, ə, i, ɨ, o, ɔ, u/. Yanam has both vowel length and nasalization, and both features can occur simultaneously, for all vowels except for /ɨ/.
| Bilabial | Alveolar | Postalveolar | Palatal | Velar | Glottal | ||
|---|---|---|---|---|---|---|---|
| plain | aspirated | ||||||
| Stop | p | t | tʰ | c | k | ʔ | |
| Affricate | t͡ʃ | ||||||
| Fricative | ɸ | s | ʃ | ç | x | h | |
| Nasal | m | n | ɲ | ŋ | |||
| Approximant | w | ɹ | j | ɰ | |||
| Flap | ɾ | ||||||