The voiceless bilabial fricative is a type of consonantal sound, used in some spoken languages.

The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɸ⟩, a Latinised form of the Greek letter Phi.

Features of the voiceless bilabial fricative: Symbols to the right in a cell are voiced, to the left are voiceless.

Shaded areas denote articulations judged impossible.

Legend: unrounded • rounded