Order of Saint Basil the Great

Order of Saint Basil the Great
Latin: Ordo Sancti Basilii Magni
AbbreviationOSBM
Formation20 August 1631 (1631-08-20)
FounderSaint Josaphat Kuntsevych
TypeMonastic order of pontifical right (for men)
Membership484 (338 priests) (2025)
Robert Lysseiko, OSBM
Parent organization
Greek Catholic Church

The Order of Saint Basil the Great (Ukrainian: Чин Святого Василія Великого, romanizedChyn Sviatoho Vasyliia Velykoho; Latin: Ordo Sancti Basilii Magni, abbreviated OSBM), also known as the Basilian Order of Saint Josaphat, is a Greek Catholic monastic order of pontifical right that works actively among Ukrainian Catholics and other Greek Catholic churches in central and Eastern Europe. The order received approbation on 20 August 1631 and is based at the Monastery of the Holy Trinity, Vilnius.