C
- Cambodia
- Khmer
- Cameroon
- English
- French
- Canada
- English (federal; de jure official language)
- De jure official language in the provinces and territories of Manitoba, New Brunswick, the Northwest Territories, Nunavut and the Yukon.
- French (federal; de jure official language)
- De jure official language for the provinces and territories of Manitoba, New Brunswick, the Northwest Territories, Nunavut, Quebec and the Yukon.
- Chipewyan (regional; de jure official language in the Northwest Territories)
- Cree (regional; de jure official language in the Northwest Territories)
- Gwich’in (regional; de jure official language in the Northwest Territories)
- Inuinnaqtun (regional; de jure official language in the Northwest Territories and Nunavut)
- Inuktitut (regional; de jure official language in the Northwest Territories and Nunavut)
- Inuvialuktun (regional; de jure official language in the Northwest Territories)
- North Slavey (regional; de jure official language in the Northwest Territories)
- South Slavey (regional; de jure official language in the Northwest Territories)
- Tłįchǫ (regional; de jure official language in the Northwest Territories)
- English (federal; de jure official language)
- Cape Verde
- Portuguese (official)
- Cape Verdean Creole (national)
- Central African Republic
- French
- Sango (national)
- Chad
- Arabic
- French
- Chile
- No official language, Spanish is the de facto official language. (the languages and dialects of ethnic groups are also official in their territories)
- China
- Chinese (statewide)
- Bai (in Dali, Lanping, Yunnan)
- Blang (in Shuangjiang, Yunnan)
- Bonan (in Jishishan, Gansu)
- Daur (in Morin Dawa, Inner Mongolia; Meilisi Daur District, Heilongjiang)
- Derung (in Gongshan, Yunnan)
- Dong (in Sanjiang, Guangxi; Qiandongnan, Yuping, Guizhou; Jingzhou, Tongdao, Xinhuang, Zhijiang, Hunan)
- Dongxiang (Santa) (in Dongxiang, Jishishan, Gansu)
- Evenki (in Evenk Autonomous Banner, Evenk Ethnic Sumu, Inner Mongolia)
- Gelao (Klau) (in Daozhen, Wuchuan, Guizhou)
- Hani (in Honghe, Jiangcheng, Mojiang, Ning'er, Yuanjiang, ZhenyuanYunnan)
- Hlai (Li) (in Baisha, Baoting, Changjiang, Ledong, Lingshui, Qiongzhong, Hainan)
- Hmong (Miao) (in Pengshui, Xiushan, Youyang, Chongqing; Chetian, Liangshui, Rongshui, Guangxi; Daozhen, Guanling, Qiandongnan, Qiannan, Qianxinan, Songtao, Weining, Wuchuan, Yinjiang, Zhenning, Ziyun, Guizhou; Baoting, Qiongzhong, Hainan; Enshi, Hubei; Chengbu, Jingzhou, Mayang, Xiangxi, Hunan; Jinping, Luquan, Pingbian, Wenshan, Yunnan)
- Jingpho (Kachin) (in Dehong, Yunnan)
- Jino (in Jinuoshan, Yunnan)
- Kazakh (in Aksai, Gansu; Barkol, Ili, Mori, Xinjiang)
- Kyrgyz (in Kizilsu, Xinjiang)
- Korean (in Changbai, Yanbian, Jilin)
- Lahu (in Lancang, Menglian, Shuangjiang, Zhenyuan, Yunnan)
- Lisu (in Sudian, Weixi, Yunnan)
- Maonan (Anan) (in Huanjiang, Guangxi)
- Mongolian (in Subei, Gansu; Weichang, Hebei; Dorbod, Heilongjiang; Inner Mongolia; Qian Gorlos, Jilin; Fuxin, Harqin, Liaoning; Haixi, Henan, Qinghai; Bayingolin, Bortala, Hoboksar, Xinjiang)
- Monguor (in Datong, Huzhu, Minhe, Qinghai)
- Monpa (in Gongri, Jiba, Lebuqule, Mama, Pailong, Tibet)
- Mulam (in Guzhai, Luocheng, Guangxi)
- Nanai (Hezhen) (in Bacha, Jiejinkou, Sipai, Heilongjiang)
- Naxi (Nakhi) (in Yulong, Yunnan)
- Ngac'ang (Achang) (in Husa, Jiubao, Nangsong, Yunnan)
- Nu (in Gongshan, Yunnan; not a specific language)
- Nuosu (Yi) (in Weining, Guizhou; Ebian, Liangshan, Mabian, Sichuan; Chuxiong, Eshan, Honghe, Jiangcheng, Jingdong, Jinggu, Luquan, Nanjian, Ninger, Ninglang, Shilin, Weishan, Xinping, Yangbi, Yuanjiang, Zhenyuan, Yunnan)
- Oroqen (in Greater Khingan, Oroqin Shibazhan, Inner Mongolia)
- Palaung (De'ang) (in Santaishan, Yunnan)
- Pumi (in Lanping, Yunnan)
- Russian (in Shiwei, Inner Mongolia)
- Qiangic (in Beichuan, Ngawa, Sichuan)
- Salar (in Jishishan, Gansu; Xunhua, Qinghai)
- Sarikoli (Tajik) (in Tashkurgan, Xinjiang)
- She (in Jingning, Zhejiang)
- Sui (in Sandu, Guizhou)
- Tatar (in Daquan, Xinjiang)
- Tibetan (in Gannan, Tianzhu, Gansu; Guoluo, Haibei, Hainan, Haixi, Huangnan, Yushu, Qinghai; Garzê, Muli, Ngawa, Sichuan; Tibet; Diqing, Yunnan)
- Tujia (in Pengshui, Shizhu, Xiushan, Youyang, Chongqing; Yanhe, Yinjiang, Guizhou; Changyang, Enshi, Wufeng, Hubei; Xiangxi, Hunan)
- Uzbek (in Da'nan'gou, Xinjiang)
- Uyghur (in Xinjiang)
- Va (in Cangyuan, Gengma, Menglian, Shuangjiang, Ximeng, Yunnan)
- Vietnamese (in Jinping, Jiangxi)
- Xibe (in Qapqal, Xinjiang)
- Yugur (Western, Eastern) (in Sunan, Gansu)
- Zhuang (in Lianshan, Guangdong; Guangxi; Wenshan, Yunnan)
- Colombia
- Spanish (the languages and dialects of ethnic groups are also official in their territories)
- Comoros
- Arabic
- Comorian
- French
- Democratic Republic of the Congo
- French
- Lingala (national)
- Kikongo (national)
- Swahili (national)
- Tshiluba (national)
- Republic of the Congo
- French
- Lingala (national)
- Munukutuba (national)
- Costa Rica
- Spanish
- Ivory Coast
- French
- Croatia
- Croatian (statewide)
- Italian (at regional level in Istria county)
- Serbian (in some municipalities)
- Hungarian (in some municipalities)
- Czech (in some municipalities)
- Cuba
- Spanish
- Cyprus
- Greek
- Turkish
- Armenian (minority language)
- Czech Republic
- Czech
- Slovak
- Bulgarian (minority language)
- Croatian (minority language)
- German (minority language)
- Greek (minority language)
- Hungarian (minority language)
- Polish (minority language)
- Romani (minority language)
- Russian (minority language)
- Rusyn (minority language)
- Serbian (minority language)
- Ukrainian (minority language)
Read more about this topic: List Of Official Languages By State