EWTN Catholic Q&A
Receiving Communion in Greek Orthodox Church
Question from Mitch on 10-22-2007:

My 20yr old daughter, who is a practicing Roman Catholic, is dating a Greek Orthodox young man. Her boyfriends sister is getting married in their Greek Orthodox church and my daughter is in the wedding party. My question is can my daughter receive Communion at this marriage ceremony? Thanks and may God Bless EWTN

Answer by Rev. Mark J. Gantley, JCL on 11-01-2007:

It is my understanding of Greek Orthodox canon law that baptized individuals who are not Orthodox are not admitted to Holy Communion. It would be important for a Catholic to respect the canon law of the Orthodox Church, even in situations when it is stricter than the Catholic canon law.