In Russia it is mostly Old Church Slavonic or Russian. In other countries it is the national language for example in USA English is the language of choice but in many areas where the population is largely Russian than they will use Russian and Old Church Slavonic or a combination of several of them.
Orthodox Christians do not refer to it as mass, but the Divine Liturgy. What language it is performed in depends on the church's ethnicity, though most Orthodox churches in America do it mostly in English. If it is a Greek church, then it is partially in Greek; if Russian, then in Russian; etc. But, like I said, the majority is done in English. In Antiochian Orthodox Churches, the entire liturgy is in English.
That depends on which country you live in and which language is spoken by the majority of the congregation. There is not one specific language used in the Eastern Orthodox Church. The Orthodox Churches in Japan use Japanese for their services, and Orthodox Churches in the USA, Britain and Australia should use English for their services. However, where there is a specific need to accommodate the needs of a particular parish, the language spoken by those parishioners can also be used. The Orthodox Church does not believe that there is such a thing as a 'holy language' or a 'liturgical language' because the Bible states that the language to be used in the church must be one that is understood by the people (I Corinthians 14:19).
There is not one specific language used in the Eastern Orthodox Church. The language which should be used in the services depends on which country the Orthodox Church is in, and also on the language spoken by the majority of the people in a congregation. For example, Orthodox Churches in Japan use Japanese for their services, and Orthodox Churches in the USA, Britain and Australia should use English for their services. However, where there is a specific need to accommodate the needs of a particular parish, the language spoken by those parishioners can also be used. The Orthodox Church does not believe that there is such a thing as a 'holy language' or a 'liturgical language' because the Bible states that the language to be used in the church must be one that is understood by the people (I Corinthians 14:19).
Russian.
Russian is spoken in Russia. In addition it is spoken by ethnic Russians in the other former Soviet republics.
Russian is the most commonly spoken Language in Europe.
The main language spoken in Moskau (Moscow in English) is Russian.
russian.
Romanian language and also Russian language
Russian
Russian
Russian is the main language spoken in Grozny, the capital city of the Chechen Republic in Russia. Chechen is also widely spoken among the local population.