Greetings from all over the world

Afrikaans (South Africa) -- Welkom
Albanian -- Mire Se Vijni
Arabic -- Merhaba or Salaam
Armenian -- Pari Yegak
Aruban -- Bon Bini
Ashanti (Ghana) -- Akuaba
Asturian (Spain) -- Afayaivos
Australian -- G'day or Ow-ya-going-mate?
Aymara (Bolivia, Peru, Chile) -- Purintaxa

Basque -- Ongi Etorri or Untsa Jin
Bella Coola Indian -- Yaw
Bengali (India, Bangladesh) -- Shagatom
Bhasa Indonesian -- Selamat Datang
Breton (France) -- Degemer Mat Deoc'h

Cambodian -- Cumpriap-sua
Catalan (Spain) -- Benvinguts
Chinese -- Huan Ying or Tsao An
Chinese (Cantonese) -- Foon Ying
Chinese (Mandarin) -- Wei or Huaning
Choctaw -- Ant Chukoa
Classical Greek -- Chaire
Cook Islands -- Kia Orana
Croatian -- Dobrodoshli
Czech -- Nazdar or Vitame Vas

Dakota [Sioux] -- Hau Koda
Danish -- God Dag or Velkommen
Djabugay (Australia) -- Djirri-nyurra
Dutch -- Welkom

English -- Welcome
Eskimo -- Khanog-illinga-vet
Estonian -- Tere Tulemast

Filipino -- See Tagalog
Finnish -- Tervetuloa or Terveiset
Flemish -- Welkom
French -- Bienvenu(e)

Gaelic -- Failte
Galician (Spain) -- Benvido/Benvida
German -- Willkommen or Guten Tag
Greek -- Kalos Orisate
Greek -- Kalos Ilthate or Kalos Tous
Guamanian -- Hafa Dai
Guarani (Paraguay) -- Tapeguahê Porãite
Gungari (Australia) -- Gnunha Yinda Murdi
Guugu Yimithirr (Australia) -- Ngauthaan-thirr, Gadiiwawu-wi

Hausa -- Lafia or Barka Da Zuwa or Sannu Da Zuwa
Hawaiian -- Malolelei or E Komo Mai! or Aloha
Hebrew -- Barukh Habayim or Brukhim Ha-ba' Im
Hebrew -- Shalom
Hindi -- Aayiye
Hungarian (Hungary) -- Isten Hozott or Jo Nap

Icelandic -- Velkomin
Indonesian -- Baik Hari or Selamat Datang
Interlingua (Constructed) -- Benvenite
Iranian -- Salam Ale Kom
Irish -- Dia Is Muire Duit or La Breas or Failte!
Italian -- Benvenuto or Buon Giorno

Japanese -- Irashaimasu or Youkoso or Konnichiwa
Jirrbal (Australia) -- Nginda Wnyjangum

Kala Lagaw Ya (Australia) -- Sew Ngapa
Kanienkehaka [Mohawk] -- She:kon
Kannada (India) -- Banni
Karelian (Russia, Finland) -- Terveh Tulgua
Konkani (India) -- Yo
Korean -- Hwangyeonghamnida or Usoe Oseyo or Annyng-hashibnika

Ladino (Spain) -- Bienvenida
Lappish -- See Sami
Latin -- Salve
Latvian -- Esiet Sveicinati or Sveican or Lobdien
Lithuanian -- Labas

Maltese (Malta) -- Merhba
Mampruli (Ghana) -- Gyaari
Manx (Britain) -- Failt
Maohi (South Pacific) -- Maeva
Maori -- Kia Ora or Haere Mai
Maya -- See Yucatec Maya
Meriam Mir (Australia) -- Maiem
Mohawk -- See Kanienkehaka
Muslim -- As-Salaam-Alaykum

Náhuatl [Aztec] -- Ahuiyacan
Navajo -- Yatahee
Norwegian -- Velkommen or Hilsener or Godday

Papiamentu (Dutch Antilles) -- Bon Bini
Philipino -- Maligayang Pagdating
Pidgin English -- See Tok Pisin
Polish -- Zyezenia or Dobrze Dzien or Witamy
Portuguese -- Sandacoes or Bon Dia or Bem-vindo or Seja Benvindo
Potowatomi -- Bozho

Romany (Gypsy) -- Mishto Avilan
Romanian -- Bine ati venit
Russian -- Sprivetom or Zdravstvuite or Dobro Pozhalovat'

Sami [Lappish] (Scandinavia) -- Bures Boahtin or Buerie Biejjie
Samoan -- Talofa
Scots (Scotland) -- Walcum
Scottish Gaelic (Scotland) -- Fàilte
Sepedi [Sotho] (S Africa) -- Kamogelo
Serbian -- Dobrodosli
Sesotho (Lesotho, S Africa) -- Kamohelo
Setswana (Botswana) [Noun] -- Kamogelo
Setswana (Botswana) [Verb] -- Amogela
Sierra Leone -- Padi Koosheh
Sioux -- See Dakota
Slovenian -- Dobrodosli or Pozdravljeni
Society Islands -- Iaorana
Southern USA -- Hi Ya'll!
Spanish -- Bienvenidos
Swahili -- Salamu or Ema Siku or Karibu
Swedish -- Välkommen or Halsningar
Swiss German -- Gruetzi

Tagalog (Philippines) -- Tuloy Po Kayo or Mabuhay
Tahitian -- Maeva
Tatar (Russia) -- Hush Kildegez
Thai -- Yin Dee or Sawasdee or Sa Waht Dee Krahp or Sau Wau Dee
Tibetan -- Chaa-phe Nang
Tok Pisin (Papua New Guinea) -- Mipela Welkam Yupela
Tonga -- Malo E Lelei
Torrese Strait (Australia) -- Maiem
Tulu (India) -- Balle
Turkish -- Merhaba or Hos Geldiniz

Ukrainian -- Vitaemo
Urdu -- Salaam O Aleikum

Vietnamese -- Chao
Welsh -- Croeso
Xhosa (South Africa) -- Ulwamkelo
Yiddish -- Gut Tog
Yoruba (W Africa) -- E Kaabo
Yucatec Maya -- Tistik
Yugambeh (Australia) -- Jingiwalli Wahlu
Zapotec (Mexico) -- Guens Sa Bisui Yubtu or Gashlee
Zulu (South Africa) [Noun] -- Ukwemukela
Zulu (South Africa) [Verb] -- Emukela