Stanisław Bohusz Siestrzeńcewicz was a Polish Catholic clergyman who became the first bishop of the Metropolitan Archdiocese of Mohilev (Mogilev), an Archbishop from 1784 and a prominent member of the Russian Academy (1807), who had earlier converted from Calvinism.
- Occupation
- writer, Catholic priest, Catholic deacon, Catholic bishop
- Position held
- titular bishop, Roman Catholic Archbishop of Mohilev, auxiliary bishop
- Citizenship
- Polish–Lithuanian Commonwealth, Russian Empire
- Born
- September 3, 1731
