| Petro Bilyanskyi | |
| Birth Name: | Petro Bilyanskyi |
| Birth Date: | 1736 |
| Birth Place: | Zhovkva, Polish–Lithuanian Commonwealth (present day Lviv Oblast, Ukraine) |
| Death Date: | 29 May 1798 (aged 61–62) |
| Death Place: | Lviv, Habsburg monarchy (present day Ukraine) |
| Bishop Of: | Ruthenian Catholic Eparchy of Lviv, Halych and Kamianets-Podilskyi |
| Ordination: | (Priest) |
| Consecration: | 23 September 1781 (Bishop) |
| Consecrated By: | Jason Smogorzewski |
| Term: | 30 October 1779 – 29 May 1798 |
| Predecessor: | Lev Sheptytskyi |
| Successor: | Mykola Skorodynskyi |
| Other Post: | Administrator of Ruthenian Catholic Eparchy of Przemyśl, Sambir and Sanok (1793–1796) |
| Coat Of Arms: | Bielański POL COA.svg |
Peter Bielański (Ukrainian: Петро Білянський, Polish: Piotr Bielański; 1736 – 29 May 1798) was a Ukrainian Greek Catholic hierarch. He was the Eparchial Bishop of the Ruthenian Catholic Eparchy of Lviv, Halych and Kamianets-Podilskyi from 1798 to 1805.
Born in Zhovkva, Polish–Lithuanian Commonwealth (present day Lviv Oblast, Ukraine) in a bourgeois family in 1736. He was ordained a priest and become a Canon of the St. George's Cathedral, Lviv until his election as bishop.[1]
He was confirmed by the Holy See as an Eparchial Bishop of the Ruthenian Catholic Eparchy of Lviv, Halych and Kamianets-Podilskyi on 30 October 1779. He was consecrated to the Episcopate on 23 September 1781. The principal consecrator was Metropolitan Yason Smohozhevskyi.
With his assistance, a seminary for the Greek Catholics was opened in Lviv on 30 August 1783. A clarification of the limits of the eparchy was made, its division into the .[1]
He died in Lviv on 29 May 1798.