Łopaciński
Łopaciński is a family name that may refer to :
- Bolesław Łopaciński (1832–1904), Polish-Lithuanian-Russian historian
- Mikołaj Tadeusz Łopaciński (1715–1778), Brest Litovsk voivode
- Wincenty Łopaciński (1886–1939), Polish historian and archivist
