I can remember we had once a topic about this already.
And we gaind this list by then...
It's also in the wiki already,
Click Here
Afrikaans: Verbode te rook
Basque: Erretzea debekatuta
Breton: Arabad butuniñ
Bulgarian: Пушенето забранено / Не пушете
Catalan: Prohibit fumar
Chinese (simplified): 禁止吸烟
Chinese (traditional): 禁止吸煙
Czech: Kouření zakázáno / Zákaz kouření
Dutch: Verboden te roken
English: No smoking / Smoking prohibited
Esperanto: Fumado malpermesata
Faroese: Royking bannað
Finnish: Tupakointi kielletty
French: Défense de fumer / Interdit de fumer
Gaelic: Na smocaibh
German: Rauchen verboten
Greek: Απαγορεύεται το κάπνισμα
Hebrew: אסור לעשן (Asur leashen)
Hungarian: Tilos a dohányzás / Dohányozni tilos
Icelandic: Reykingar bannaðar
Indonesian: Dilarang merokok
Irish: Ná caitear tobac
Italian: Vietato fumare
Japanese: 禁煙 (きんえん)
Khmer: ហាមជក់បារី
Korean: 금연
Malaysian: Dilarang merokok
Polish: Palenie zabronione
Portuguese: Proibido fumar
Romanian: Fumatul interzis; Fumatul oprit
Russian: Не курить (Ne kurit')
Serbian: Забранјено пушенје (Zabranjeno pušenje)
Slovak: Zákaz fajčiť
Spanish: Prohibido fumar
Swedish: Rökning förbjuden
Tagalog: Bawal manigarilyo
Thai: กรุณาอย่าสูบบุหรี่ / ห้ามส? ?บบุหรี่
Turkish: Sigara içmek yasaktır