May 20 (Eastern Orthodox liturgics)
May 19 - Eastern Orthodox Church calendar - May 21
All fixed commemorations below celebrated on June 2 by Orthodox Churches on the Old Calendar.
For May 20th, Orthodox Churches on the Old Calendar commemorate the Saints listed on May 7.
Saints
Saint Lydia of Thyatira, mentioned in Acts 16:14-15 Martyrs Thalelaeus the Unmercenary, at Anazarbus in Cilicia, and his companions Alexander and Asterius- Martyr Asclas of the Thebaid, Egypt
- Sts. Zabulon and Susanna, of Cappadocia and Jerusalem,
- Saint Mark the Hermit
- Holy Martyrs of Mamilla, Jerusalem
- Saint Thalassius the Myrrh-gusher, of Libya
- Saints John, Joseph and Nicetas, monks of Nea Moni on Chios
Pre-Schism Western saints
- Saint Plautilla the Roman, martyr,
- Hieromartyr Baudelius, missionary in France and northern Spain, martyred in Nîmes
- Virgin-martyr Basilla
- Saint Hilary, Bishop of Toulouse in France
- Saint Anastasius, Bishop of Brescia in Lombardy, in Italy
- Saint Austregisilus, Bishop of Bourges and Confessor
- Saint Theodore of Pavia, Bishop of Pavia
- Saint Ethelbert, King of East Anglia in England, martyr
- Saint Alcuin of York, monk
Post-Schism Orthodox saints
New martyrs and confessors
- New Hieromartyr Pavel Lazarev, martyred on the feast of Pentecost
- Venerable Olympiada Verbetska, Igumenia of Kozelschansk women's monastery of the Nativity of the Mother of God
Other commemorations
Translation of the holy relics of Saint Nicholas the Wonderworker Uncovering of the relics of St. Alexis, Metropolitan of Moscow, Wonderworker- Repose of Schema-monk Cyriacus of Valaam