The grapheme Ć (minuscule: ć), derived from “C” with the addition of an acute accent, finds usage in various languages, typically denoting [t͡ɕ], the voiceless alveolo-palatal affricate, including in phonetic transcription. Its Unicode code points are U+0106 for Ć and U+0107 for ć.

Originating in the Polish alphabet, where it often appears at the ends of words, the symbol was incorporated into Serbo-Croatian by Croatian linguist Ljudevit Gaj during the 19th century. It serves as the fifth letter in the Polish, Sorbian, and Latin alphabets of Serbo-Croatian, as well as its slight variant, the Montenegrin Latin alphabet. In the Belarusian Łacinka alphabet, it holds the fourth position.

Additionally, the Ć grapheme is adopted by Wymysorys, a West-Germanic language spoken in Poland, where it functions as the fifth letter in its alphabet.

In Slovenian, Ć appears mainly in loanwords from Serbo-Croatian (e.g., the surname “Handanović”), where it signifies the same sound as “Č,” i.e., the voiceless palato-alveolar affricate.

Equivalent to Ћ in the Serbian Cyrillic alphabet (23rd letter), Macedonian uses Ќ as a partial equivalent (24th letter). In other languages employing the Cyrillic alphabet, this sound is usually represented by the character combination ЧЬ. Furthermore, Ć shares similarities with the Sanskrit letter च (a palatal sound), though the International Alphabet of Sanskrit Transliteration (IAST) employs the letter “c” to represent it.

Lastly, in unofficial Belarusian Łacinka, Ć represents the palatalized alveolar affricate [t͡sʲ].