European Languages:
* English: Good night
* Spanish: Buenas noches
* French: Bonne nuit
* Italian: Buona notte
* German: Gute Nacht
* Portuguese: Boa noite
* Russian: Спокойной ночи (Spokoynoy nochi)
* Polish: Dobranoc
* Dutch: Goedenacht
* Swedish: God natt
* Finnish: Hyvää yötä
* Danish: Godnat
* Norwegian: God natt
* Hungarian: Jó éjt
* Czech: Dobrou noc
* Slovak: Dobrú noc
* Romanian: Noapte bună
Asian Languages:
* Chinese (Mandarin): 晚安 (wǎn ān)
* Japanese: おやすみ (oyasumi)
* Korean: 안녕히 주무세요 (annyeonghi jumuseyo)
* Hindi: शुभ रात्रि (shubh ratri)
* Thai: ราตรีสวัสดิ์ (ratri sa-wat)
* Vietnamese: Chúc ngủ ngon
Other Languages:
* Arabic: تصبح على خير (tasbiḥ 'ala khayْr)
* Hebrew: לילה טוב (layla tov)
* Greek: Καλό βράδυ (Kalo vrady)
* Turkish: İyi geceler
* Indonesian: Selamat malam
* Tagalog: Magandang gabi
This is just a small sampling of how to say "goodnight" around the world. There are many other languages and dialects, each with its own unique way of expressing this common sentiment.