Horodecki is a Polish language surname. It corresponds to the Russian language surname Gorodetsky. Notable people with the surname include:
Chris Horodecki (born 1987), Polish-Canadian mixed martial artist Michał Horodecki (born 1973), Polish physicist Paweł Horodecki (born 1971), Polish physicist Ryszard Horodecki (born 1943), Polish physicist Władysław Horodecki (1863–1930), Polish architect and big-game hunter