Alojzy is a given name. Notable people with the name include:
Alojzy Ehrlich (1914–1992), Polish table tennis player Alojzy Feliński (1771–1820), Polish writer Alojzy Lysko (born 1942), Polish politician Alojzy Wir-Konas (1894–1940), Polish Army colonel Alojzy Gonzaga Jazon Żółkowski (1814–1889), Polish comedian, actor and singer