Jarosz is a surname of Polish origin. Notable people with this surname include:
Elżbieta Jarosz (born 1971), retired female long-distance runner
Sarah Jarosz (born 1995), American singer
Łukasz Jarosz (born 1979), Polish heavyweight kickboxer
Jakub Jarosz (born 1987), Polish volleyball player
Maciej Jarosz (born 1959), former Polish volleyball player
Hieronim Jarosz Sieniawski (ca. 1516–1579), Polish noble