The holy, glorious, all-laudable Apostle Aristobulus (also Aristovoulos) is numbered among the Seventy Apostles. Along with the Apostles Urban, Stachys, Narcissus, Apelles and Amplias he assisted the Apostle Andrew. St. Aristobulus was also the brother of the Apostle Barnabas. He preached the Gospel in Britain as its first bishop and there he reposed peacefully in the Lord. His feast days are celebrated on March 15, on October 31 with Amplias, Apelles, Stachys, Urban, and Narcissus, and on January 4 with the Seventy.
- Apostle Aristobulus of the Seventy, January 4 (OCA)
- Apostle Aristobulus of the Seventy the Bishop of Britain, March 16 (OCA)
- Apostle Aristobulus of the Seventy, October 31 (OCA)
- Amplias, Apellos, Stachyos, Urbanos, Aristovoulos & Narcissos of the 70 (GOARCH)