Paetz is a surname. Notable people with the surname include:
David Paetz (born 1940), New Zealand cricketer Emma Paetz, Canadian actress Juliusz Paetz (1935–2019), Polish bishop of the Catholic Church Rolf Paetz (1922–1994), German footballer Sabine Paetz (née Möbius, second married name John, born 1957), East German heptathlete
See also Patz