Today, Orthodox Christians around the world (myself included) celebrate Orthodox Easter (also called Pascha in many traditions). This year was a big offset from Western Easter because of the difference between the Gregorian Calendar used in the West and the Julian Calendar used by Orthodox Christians for calculating the date of Easter. Although the dates are different, it's the same celebration. 

The traditional greeting used by the Orthodox during the Paschal Season (from Easter to Pentecost) is "Christ is Risen" and the traditional response is "Indeed he is risen." Here's that same greeting from around the world:

Language    Greeting    Response
           
Aleut:    Khristus anahgrecum!    Alhecum anahgrecum!
Aleut:    Khris-tusax agla-gikux!    Agangu-lakan agla-gikux!
Albanian:    Krishti U Ngjall!    Vertet U Ngjall!
Alutuq:    Khris-tusaq ung-uixtuq!    Pijii-nuq ung-uixtuq!
Amharic:    Kristos tenestwal!    Bergit tenestwal!
Anglo-Saxon:    Crist aras!    Crist sodhlice aras!
Arabic:    El Messieh kahm!    Hakken kahm!
Armenian:    Kristos haryav ee merelotz!    Orhnial eh harootyunuh kristosee!
Athabascan:    Xristosi banuytashtch'ey!    Gheli banuytashtch'ey!
Bulgarian:    Hristos voskrese!    Vo istina voskrese!
Byelorussian:    Khrystos uvaskros!    Saprawdy uvaskros!
Chinese:    Helisituosi fuhuole!    Queshi fuhuole!
Coptic:    Pchristos aftooun!    Alethos aftooun!
Czech:    Kristus vstal a mrtvych!    Opravdi vstoupil!
Danish:    Kristus er opstanden!    Ja, sandelig opstanden!
Dutch:    Christus is opgestaan!    Ja, hij is waarlijk opgestaan!
English:    Christ is risen!    Indeed He is risen!
Eritrean-Tigre:    Christos tensiou!    Bahake tensiou!
Esperanto:    Kristo levigis!    Vere levigis!
Estonian:    Kristus on oolestoosunt!    Toayestee on oolestoosunt!
Ethiopian:    Christos t'ensah em' muhtan!    Exai' ab-her eokala!
Finnish:    Kristus nousi kuolleista!    Totisesti nousi!
French:    Le Christ est réssuscité!    En verite il est réssuscité!
Gaelic:    Taw creest ereen!    Taw shay ereen guhdyne!
Georgian:    Kriste akhsdga!    Cheshmaritad Akhsdga!
German:    Krist ist auferstanden!    Wahrlich Er ist auferstanden!
Greek:    Christos anesti!    Alithos anesti!
Hawaiian:    Ua ala hou 'o Kristo!    Ua ala 'I 'o no 'oia!
Hebrew:    Ha Masheeha houh quam!    Be emet quam!
Hungarian:    Krisztus feltamadt!    Valoban feltamadt!
Ibo ( Nigeria):    Jesu Kristi ebiliwo!    Ezia o' biliwo!
Indian (Malayalam):    Christu uyirthezhunnettu!    Theerchayayum uyirthezhunnettu!
Indonesian:    Kristus telah bangkit!    Benar dia telah bangkit!
Italian:    Cristo e' risorto!    Veramente e' risorto!
Japanese:    Harisutos Fukkatsu!    Jitsu ni Fukkatsu!
Javanese:    Kristus sampun wungu!    Tuhu sampun wungu!
Korean:    Kristo gesso!    Buhar ha sho nay!
Latin:    Christus resurrexit!    Vere resurrexit!
Latvian:    Kristus ir augsham sales!    Teyasham ir augsham sales vinsch!
Lugandan:    Kristo ajukkide!    Amajim ajukkide!
Norwegian:    Christus er oppstanden!    Sandelig han er oppstanden!
Polish:    Khristus zmartwyckwstal!    Zaprawde zmartwyckwstal!
Portuguese:    Cristo ressuscitou!    Em verdade ressuscitou!
Romanian:    Hristos a inviat!    Adevărat a înviat!
Russian:    Khristos voskrese!    Voistinu voskrese!
Sanskrit:    Kristo'pastitaha!    Satvam upastitaha!
Serbian:    Cristos vaskres!    Vaistinu vaskres!
Slovak:    Kristus vstal zmr'tvych!    Skutoc ne vstal!
Spanish:    Cristo ha resucitado!    En verdad ha resucitado!
Swahili:    Kristo amefufukka!    Kweli amefufukka!
Swedish:    Christus ar upstanden!    Han ar verkligen upstanden!
Syriac:    M'shee ho dkom!    Ha koo qam!
Tlingit:    Xristos Kuxwoo-digoot!    Xegaa-kux Kuxwoo-digoot!
Turkish:    Hristos diril - di!    Hakikaten diril - di!
Ugandan:    Kristo ajukkide!    Kweli ajukkide!
Ukrainian:    Khristos voskres!    Voistinu voskres!
Welsh:    Atgyfododd Crist!    Atgyfododd yn wir!
Yupik:    Xris-tusaq Ung-uixtuq!    Iluumun Ung-uixtuq!
Zulu:    Ukristu uvukile!    Uvukile kuphela!