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| Peter von Biron | |
|---|---|
| Duke of Courland and Semigallia | |
 Portrait by Friedrich Hartmann Barisien, c. 1782 | |
| Duke of Courland and Semigallia | |
| Reign | 1769–1795 |
| Predecessor | Ernst Johann von Biron |
| Successor | None |
| Born | 15 February 1724 Mitau, Duchy of Courland and Semigallia |
| Died | 13 January 1800 (aged 75) Gellenau Palace, Gellenau, Kingdom of Prussia |
| Spouse | |
| Issue | |
| House | Biron |
| Father | Ernst Johann, Duke of Courland and Semigallia |
| Mother | Benigna Gottlieb von Trotha gt Treyden |
| Religion | Lutheranism |
Peter von Biron (15 February 1724 – 13 January 1800) was the last duke of Courland and Semigallia from 1769 to 1795, when it was annexed by the Russian Empire.