Janiszewski

Janiszewski (feminine Janiszewska) is a Polish surname. Notable people with the surname include:


 * Barbara Janiszewska (1936–2000), Polish athlete
 * Henryk Janiszewski (born 1949), Polish ice hockey player
 * Jerzy Janiszewski (born 1952), Polish artist
 * Jill Janus (née Janiszewski; 1975–2018), American heavy metal singer
 * Michał Janiszewski (1926–2016), Polish military officer
 * Robert C. Janiszewski (born 1945), American politician
 * Zygmunt Janiszewski (1888–1920), Polish mathematician