Hany Abdelsayed, later Bishop Kyrillos, was born in Los Angeles, California.[4] He obtained a Bachelor of Science in communication studies from UCLA.[2] While at UCLA, he and his twin brother Nagui Abdelsayed (now Fr. David Abdelsayed) spearheaded the first formal Coptic Clubs in Southern California in 1993.[4] After his graduation from UCLA, he obtained a Juris Doctor degree from the Georgetown University Law Center.[1][3] He practised law before serving as a consecrated deacon from 2000 to 2002.[1]