Ĉ or ĉ (C circumflex) is a consonant in Esperanto orthography, representing the sound [t͡ʃ].
It is based on the letter c. Esperanto orthography uses a diacritic for all four of its postalveolar consonants, as do the Latin-based Slavic alphabets. Letters and digraphs that are similar to ĉ and represent the same sound include Slovene č, Polish digraph cz, English and Spanish digraph ch, French trigraph tch, Norwegian trigraph tsj, German tetragraph tsch, and Italian c before i or e.
Ĉ is the fourth letter of the Esperanto alphabet. Although it is written as cx and ch respectively in the x-system and h-system workarounds, it is normally written as C with a circumflex: ĉ.
| Character || Ĉ || ĉ |
| Unicode name || LATIN CAPITAL LETTER C WITH CIRCUMFLEX || LATIN SMALL LETTER C WITH CIRCUMFLEX|
| Encodings || decimal || hex || decimal || hex |
| Unicode || 264 || U+0108 || 265 || U+0109 |
| UTF-8 || 196 136 || C4 88 || 196 137 || C4 89 |
| Numeric character reference || Ĉ || Ĉ || ĉ || ĉ |