Massalski (feminine: Massalska, plural: Massalscy) is a Polish language surname. It may refer to:
Massalski family of Polish nobility Aleksander Masalski (1593–1643), voivode of Mińsk Voivodship Andrzej Massalski (died 1651), voivode of Mińsk Voivodship Michał Józef Massalski, Great Hetman of Lithuania Ignacy Jakub Massalski, Bishop of Wilno Józef Adrian Massalski (1726–1765), marszałek of the Sejm Helena Apolonia Massalska (1763–1815), diarist Edward Tomasz Massalski (1799–1879), writer and publicist Józef Massalski (1800–1845), poet Peter Massalski, East German slalom canoer Barbara Massalska (1927–1980), Polish artist
See also Mosalsky (disambiguation)