C
- Cambodia: (Chéat, Sasna, Preăhmôhaksât) (Khmer, Nation, Religion, King)
- Cameroon: Paix - Travail - Patrie (French, Peace, Work, Fatherland)
- Canada: A mari usque ad mare (Latin, From sea to sea)
- Canary Islands: Océano (Spanish, Ocean)
- Cape Verde: República de Cabo Verde (Portuguese, Republic of Cape Verde)
- Cayman Islands: He hath founded it upon the seas
- Central African Republic: Unité, Dignité, Travail (French, Unity, Dignity, Work)
- Chad: Unité, Travail, Progrès (French, Unity, Work, Progress)
- Chile: Por la razón o la fuerza (Spanish, Through Reason Or By Force)
- China: No official motto
- Chuvashia: Чаваш Республики; Чувашская Республика (Chuvash, Russian, Chuvash Republic)
- Colombia: Libertad y orden (Spanish, Freedom and order)
- Comoros: Unité, Justice, Progrès (French, Unity, justice, progress)
- Confederate States of America: Deo Vindice (Latin, Under God, Our Vindicator)
- Democratic Republic of the Congo: Justice - Paix - Travail (French, Justice, Peace, Work)
- Republic of the Congo: Unité, Travail, Progrès (French, Unity, Work, Progress)
- Cook Islands: No official motto.
- Costa Rica: Vivan siempre el trabajo y la paz (Spanish, Long live work and peace)
- Côte d'Ivoire: Union, Discipline, Travail (French, Unity, Discipline, Labor)
- Croatia: No official motto. Unofficial mottos include Doc je srca, bit će i Kroacije (Croatian, As long as there is heart, there is Croatia) and Bog i Hrvati (Croatian, God and the Croats). See List of Croatian mottos.
- Cuba: Patria o muerte (Spanish, Homeland or death)
- Cyprus: Δεν ξεχνώ και αγωνίζομαι (Greek, Den xehno ke agonizomai, I do not forget and I strive)
- Turkish Republic of Northern Cyprus: No official motto
- Czech Republic: Pravda vítězí (Czech, Truth prevails)
- Czechoslovakia (1918–1993): Pravda víťazí! (Slovak), Pravda vítězí! (Czech), Veritas vincit (Latin), all meaning "Truth prevails!"
Read more about this topic: List Of National Mottos