- Afrikaans: Tsjeg
- Albanian: çek (sq) m
- Arabic: تْشِيكِيّ m (tšīkiyy), تْشِيكِيَّة (ar) f (tšīkiyya)
- Armenian: չեխ (hy) (čʿex)
- Azerbaijani: çex
- Basque: txekiar
- Belarusian: чэх m (čex), чэ́шка f (čéška)
- Bulgarian: чех (bg) m (čeh), чехки́ня f (čehkínja)
- Catalan: txec (ca) m, txeca (ca) f
- Chinese:
- Mandarin: 捷克人 (zh) (jiékèrén)
- Cornish: Chek m, Chekes f
- Czech: Čech (cs) m, Češka (cs) f
- Danish: tjekke (da) c, tjekker c
- Dutch: Tsjech (nl) m, Tsjechische (nl) f
- Esperanto: ĉeĥo, ĉeĥino (female)
- Estonian: tšehh
- Faroese: kekki m
- Finnish: tšekki (fi)
- French: Tchèque (fr) m or f
- Galician: checo (gl) m, checa f
- Georgian: ჩეხი (čexi)
- German: Tscheche (de) m, Tschechin (de) f
- Greek: Τσέχος (el) m (Tséchos), Τσέχα (el) f (Tsécha)
- Hebrew: צ׳כי m (chekhi), צֶ׳כִית f (chekhit)
- Hungarian: cseh (hu)
- Icelandic: Tékki m
- Irish: Seiceach
- Italian: ceco (it) m, ceca (it) f
- Japanese: チェコ人 (ja) (ちぇこじん, chekojin)
- Kazakh: чех (çex)
- Khmer: ឆែក (km) (chaek)
- Korean: 체코인 (ko) (chekoin), 체코 사람 (cheko saram)
- Kyrgyz: чех (ky) (çeh)
- Latin: Bohemus m
- Latvian: čehs m, čehiete f
- Lithuanian: čekas (lt) m, čekė (lt) f
- Macedonian: Чех m (Čeh), Чехинка f (Čehinka)
- Malay: orang Czech
- Maltese: Ċek m, Ċeka f
- Manx: Sheckagh m
- Mongolian:
- Norwegian:
- Persian: چک (fa) (ček)
- Polish: Czech (pl) m pers, Czeszka (pl) f
- Portuguese: tcheco (pt) m, tcheca (pt) f, checo (pt) m, checa f
- Romanian: ceh (ro) m, cehă (ro) f, cehoaică (ro) f
- Russian: чех (ru) m (čex), че́шка (ru) f (čéška)
- Rusyn: Чех m (Čex), Че́шка f (Čéška)
- Scottish Gaelic: Seiceach m
- Serbo-Croatian:
- Slovak: Čech (sk) m, Češka (sk) f
- Slovene: Čéh (sl) m, Čéhinja f
- Spanish: checo (es) m, checa (es) f
- Swahili: Mcheki (sw)
- Swedish: tjeck (sv) c, tjeckiska (sv) c (female)
- Thai: ชาวเช็ก
- Turkish: Çek (tr)
- Turkmen: çeh
- Ukrainian: чех (uk) m (čex), че́шка f (čéška)
- Uyghur: چېخ (chëx)
- Uzbek: chex (uz)
- Vietnamese: người Séc, người Tiệp
- Welsh: Tsieciad m or f
- Yiddish: טשעך m (tshekh)
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