Afrikaans - haai (Pronounced Ha-I)
Albanian - tungjatjeta (Pronounced Toon-jat-yeta)
Arabic – mArHAbAn (pronounced Mar-ha-ban)
Armenian - barev or parev
Azerbaijani - salam pronounced Sa-laam
Bahamas – hello (for.), hi or heyello (informal)
Basque - kaixo (Pronounced kai-show)
Bavarian and Austrian German - grüß Gott (Pronounced gruess gott),
Bengali — 'aas salamu alaay kum' (In Bangladesh) 'namaskar (In West Bengal, India)
Bremnian - koali (Pronounced kowalee)
Bulgarian - zdraveite, zdrasti (informal)
Burmese - mingalarbar
Cape-Verdean Creole - oi, olá
Catalan - hola (Pronounced o-la),
Chichewa - moni bambo! (to a male), moni mayi! (to a female)
Chinese - 你好, Cantonese nei ho or lei ho (Pronounced nay ho or lay ho) Mandarin 你好 (pronounced ni hao), 早上好（pronounced zao shang hao; good morning!）
Congo - Mambo
Cree - Tansi (Pronounced Dawnsay)
Czech - dobré ráno (until about 8 or 9 a.m.), dobrý den (formal), dobrý večer (evening), ahoj (informal; pronounced ahoy)
Danish - hej (informal; pronounced hey),
Double Dutch - hutch-e-lul-lul-o (hello),
Dutch - hoi (very informal), hallo (informal)
English - hello (formal), hi (informal), hey (informal,)
Esperanto - saluton (formal), sal (informal)
Estonian - tere'
Fijian - bula uro
Finnish - hyvää päivää (formal), moi or hei (informal)
French - salut (informal; silent 't'), bonjour (formal, Pronounced Bonju; 'n' as a nasal vowel),
Gaelic - dia duit (informal; pronounced dee-ah gwitch; literally "God be with you")
German - hallo (informal), Guten Tag (formal; pronounced gootan taag), Tag (very informal;
Greek - yia sou (pronounced yah-soo; informal), yia sas (formal)
Hawaiian - aloha
Hebrew - shalom (means "hello", "goodbye" and "peace"), hi (informal),
Hindi and Nepali - नमस्ते, namaste, namaskar (pronounced na-mus-tei),
Hungarian, Magyar - jo napot (pronounced yoh naput; formal), szervusz (pronounced sairvoose; informal), szia (pronounced seeya; informal)
Icelandic - góðan dag (formal; pronounced gothan dagg), hæ (informal)
Igbo - nde-ewo (pronounced enday aywo), nna-ewo (pronounced enna wo)
Indonesian - selamat pagi (morning), selamat siang (afternoon), selamat malam (evening)
Italian - ciào (pronounced chow; informal; also means "goodbye"),
Japanese - ohayou gozaimasu (pronounced o-ha-yo go-zai-mass; good morning), konnichi wa (pronounced ko-nee-chee-wa; afternoon), konbawa (pronounced gong-ban-wa; evening); moshi moshi (pronounced moh-shee moh-shee; when answering the phone); doumo (pronounced doh-moh; informal way of greeting,
Jibberish - huthegelluthego, h-idiguh-el l-idiguh-o (formal), h-diguh-i (informal),
Jamaican(slang)- Yow Wah gwaan (pronounced wa-gwaan)
Kanien'kéha (Mohawk) - kwe kwe (pronounced gway gway)
Kannada – namaskaaram
Kazakh - Salem
Korean - ahn nyeong ha se yo (formal; pronouned ahn-yan-ha-say-yo), ahn nyeong (informal; can also be used to mean "goodbye")
Kurdish — choni, roj bahsh (day; pronounced rohzj bahsh)
Lao - sabaidee (pronounced sa-bai-dee)
Latin (Classical) - salve (pronounced sal-way; to one person), salvete (pronounced sal-way-tay; to more than one person), ave (pronounced ar-way; to one respected person), avete (pronounced ar-way-tay; to more than one respected person)
Latvian - labdien, sveiki, chau (informal; pronounced chow).
Lingala - mbote
Lithuanian - laba diena (formal), labas, sveikas (informal; when speaking to a male), sveika (informal; when speaking to a female), sveiki (informal; when speaking to more than one person).
Luxembourgish - moïen (pronounced MOY-en)
Malayalam - namaskkaram
Maori - kia ora (kia o ra), tena koe, ata marie, morena (good morning)
Mexican - hola
Mongolian - sain baina uu? (pronounced saa-yen baya-nu; formal), sain uu? (pronounced say-noo; informal), ugluunii mend (morning; pronounced ohglohny mend), udriin mend (afternoon, pronounced ohdriin mend), oroin mend (evening; pronounced or-oh-in mend)
Nahuatl - niltze, hao
Navajo - ya'at'eeh
Niuean - faka lofa lahi atu (formal) fakalofa (informal)
Neapolitan - cia, cha
Northern German - moin moin
Northern Shoto - dumelang
Norwegian - hei ("hi"), hallo ("hello")
Oshikwanyama - wa uhala po, meme? (to a female;), wa uhala po, tate? (to a male; response is ee) nawa tuu? (response is ee; formal)
Oromo(Afan Oromo) - asham (hi')
Persian - salaam or do-rood (see note above - salaam is an abbreviation, the full version being as-salaam-o-aleykum in all Islamic societies)
Pig Latin - eyhay (informal), ellohay (formal)
Polish - dzień dobry (formal), witaj (hello) cześć (hi, pronounced, "cheshch")
Portuguese - oi, boas, olá or alô (informal);
Romanian - salut, buna dimineata (formal; morning) buna ziua (formal; daytime) buna searaformal; evening), buna (usually when speaking to a female pronounced boo-nhuh)
Russian - pree-vyet (informal), zdravstvuyte (formal; pronounced ZDRA-stvooy-tyeh)
Samoan - talofa (formal), malo (informal)
Scanian - haja (universal), hallå (informal), go'da (formal), go'maren (morning), go'aften (evening)
Senegal - salamaleikum
Serbian - zdravo (informal), dobro jutro (morning, pronounced dobro yutro), dobar dan (afternoon), dobro veče (pronounced dobro vetchay evening), laku noć (night)
Sinhala - a`yubowan (pronounced ar-yu-bo-wan; meaning "long live")
Slovak - dobrý deň (formal), ahoj (pronounced ahoy), čau (pronounced chow) and dobrý (informal abbreviation)
Slovenian — živjo (informal; pronounced zhivyo), dobro jutro (morning), dober dan (afternoon), dober večer (evening; pronounced doh-bear vetch-air)
South African English - hoezit (pronounced howzit; informal)
Spanish - hola (pronounced with a silent 'h': o-la),
Sulka - marot (morning; pronounced mah-rote , mavlemas (afternoon; v is pronounced as a fricative b), masegin (evening; g is pronounced as a fricative)
Swahili - jambo, Habari (hello)
Swedish - tja (very informal; pronounced sha), hej (informal; pronounced hey), god dag (formal)
Swiss German - grüzi (pronounced grew-tsi)
Tahitian - ia orana
Tamil - vanakkam
Telugu- namaskaram
Tetum (Timor - Leste) - bondia (morning), botarde (afternoon), bonite (evening)
Thai - sawa dee-ka (said by a female), sawa dee-krap (said by a male)
Tongan - malo e lelei
Tsonga (South Africa) - minjhani (when greeting adults), kunjhani (when greeting your peer group or your juniors)
Turkish - merhaba (formal), nevar? (Informal)
Ukranian - dobriy ranok (formal; morning), dobriy den (formal; afternoon), dobriy vechir (formal; evening), pryvit (informal)
Uzbek - Assalomu Alay