The voiceless alveolo-palatal sibilant affricate is a type of consonantal sound, used in some spoken languages.

This affricate has a dedicated symbol U+02A8 ʨ LATIN SMALL LETTER TC DIGRAPH WITH CURL, which has been retired by the International Phonetic Association but is still used.

Neither [t] nor [c] are a completely narrow transcription of the stop component, which can be narrowly transcribed as [t̠ʲ] (retracted and palatalized [t]) or [c̟] (advanced [c]).

Therefore, narrow transcriptions of the voiceless alveolo-palatal sibilant affricate include [t̠ʲɕ], [c̟ɕ] and [ȶɕ].

It occurs in languages such as Mandarin Chinese, Japanese, Polish, Serbo-Croatian or Russian, and is the sibilant equivalent of the voiceless palatal affricate.