Afrikaans: William (vil-yam)
Albanian: Uilliam (oo-ee-lee-am)
Amharic: ዊልያም (wee-lee-yam)
Arabic: ويليام (weel-yaam)
Armenian: Վիլյամ (vil-yam)
Azerbaijani: Vilyam (veel-yam)
Basque: William (vil-yam)
Belarusian: Вільям (veel-yam)
Bengali: উইলিয়াম (wee-lee-yam)
Bosnian: Vilijam (vee-lee-yam)
Bulgarian: Уилям (wee-lyam)
Burmese: ဝီလီယံ (wee-lee-yam)
Catalan: Guillem (ghee-yem)
Cebuano: William (vil-yam)
Chinese (Mandarin): 威廉 (wēi lián)
Croatian: Vilijam (vee-lee-yam)
Czech: Vilém (vee-lehm)
Danish: William (vil-yam)
Dutch: Willem (vil-lem)
Esperanto: Vilhelmo (veel-hel-moh)
Estonian: Villu (veel-loo)
Finnish: Viljami (veel-yah-mee)
French: Guillaume (gee-yohm)
Galician: Guillelme (gee-lyel-meh)
Georgian: ვილიამ (vee-lee-am)
German: Wilhelm (vil-helm)
Greek: Ουίλιαμ (oo-ee-lee-am)
Gujarati: વિલિયમ (vee-lee-yam)
Haitian Creole: Willyam (veel-yam)
Hausa: William (veel-yam)
Hebrew: ויליאם (vee-lee-yam)
Hindi: विलियम (vee-lee-yam)
Hungarian: Vilmos (veel-mosh)
Icelandic: Vilhjálmur (veel-hyah-mur)
Igbo: William (veel-yam)
Indonesian: William (veel-yam)
Irish: Liam (lee-um)
Italian: Guglielmo (goo-lyel-moh)
Japanese: ウィリアム (oo-ee-ree-ah-moo)
Javanese: Wilhelmus (veel-hel-mus)
Kannada: ವಿಲಿಯಮ್ (vee-lee-yam)
Kazakh: Уильям (wee-lyam)
Khmer: វីលៀម (vee-lee-yam)
Korean: 윌리엄 (weel-lee-yeom)
Kurdish: Wîlyam (wee-lyam)
Kyrgyz: Уильям (wee-lyam)
Lao: ວິລຽມ (wee-lee-yam)
Latvian: Viljams (veel-yams)
Lithuanian: Viljamas (veel-yah-mas)
Luxembourgish: Willyam (vil-yam)
Macedonian: Вилијам (vee-lee-yam)
Malagasy: William (veel-yam)
Malay: William (veel-yam)
Malayalam: വില്യം (vee-lee-yam)
Maltese: Viljam (veel-yam)
Maori: Wiremu (wee-reh-moo)
Marathi: विल्यम (vee-lyam)
Mongolian: Вильям (veel-yam)
Nepali: विलियम (vee-lee-yam)
Norwegian: William (vil-yam)
Odia: ୱିଲିୟମ୍ (wee-lee-yam)
Pashto: ويليم (wee-leem)
Persian: ویلیام (vee-lee-yam)
Polish: Wilhelm (veel-helm)
Portuguese: Guilherme (gee-yair-meh)
Punjabi: ਵਿਲੀਅਮ (vee-lee-yam)
Romanian: William (veel-yam)
Russian: Вильям (veel-yam)
Samoan: Vilimoni (vee-lee-moh-nee)
Serbian: Вилијам (vee-lee-yam)
Shona: William (veel-yam)
Sinhala: විලියම් (vee-lee-yam)
Slovak: Vilhelm (veel-helm)
Slovenian: Viljem (veel-yem)
Somali: William (veel-yam)
Spanish: Guillermo (gee-yer-mo)
Sundanese: William (veel-yam)
Swahili: William (veel-yam)
Swedish: William (vil-yam)
Tagalog: William (veel-yam)
Tajik: Вильям (veel-yam)
Tamil: வில்லியம் (veel-lee-yam)
Telugu: విలియమ్ (vee-lee-yam)
Thai: วิลเลียม (wee-lee-yam)
Tigrinya: ዊልያም (wee-lee-yam)
Turkish: William (veel-yam)
Turkmen: Vilýam (veel-yam)
Ukrainian: Вільям (veel-yam)
Urdu: ولیم (vee-leem)
Uzbek: Vilyam (veel-yam)
Vietnamese: William (veel-yam)
Welsh: Gwilym (gwee-lim)
Wolof: William (veel-yam)
Xhosa: William (veel-yam)
Yiddish: ויליאם (veel-yam)
Yoruba: William (veel-yam)
Zulu: William (veel-yam)