• English: thirty
• Spanish: treinta
• French: trente
• Chinese: 三十
• German: dreißig
• Japanese: 三十
• Italian: trenta
• Dutch: dertig
• Russian: тридцать
• Portuguese: trinta
• Korean: 서른
• Greek: τριάντα
• Arabic: ثلاثون
• Hebrew: שלושים
• Thai: สามสิบ
• Latin: triginta
• Hindi: तीस
• Polish: Trzydzieści
• Tagalog: tatlumpu
• Swedish: trettio
• Romanian: treizeci
• Norwegian: tretti
• Turkish: otuz
• Finnish: kolmekymmentä
• Farsi: سی
• Danish: tredive
• Indonesian: tigapuluh
• Czech: třicet
• Hungarian: harminc
• Ukrainian: тридцять
• Belarusian: трыццаць
• Amharic: ሰላሳ
• Swahili: thelathini
• Bulgarian: тридесет
• Croatian: trideset
• Esperanto: tridek