Rz or RZ can stand for:
People Friederike Schwarz, Czech composer and journalist who used rz as a pseudonym) Robin Zander, American rock singer with Cheap Trick Richard Zednik, Slovak professional hockey player Roger Zelazny, American science fiction and fantasy writer Renée Zellweger, American actress Robert Zemeckis, American filmmaker Ron Ziegler, White House Press Secretary under Richard Nixon Raquel Zimmermann, Brazilian model Robert Zimmerman (disambiguation) Rachel Zoe, American fashion stylist Rob Zombie, an American heavy metal artist and film director
Other uses ASEA Rz, a Swedish test locomotive Lexus RZ, an automobile Polikarpov R-Z, a Spanish Civil War-era Soviet reconnaissance bomber Red zone (gridiron football), an area of the field in gridiron football Redneck Zombies, a 1986 horror film Return-to-zero, in line coding Revolutionary Cells (German group), in German Revolutionäre Zellen, a militant leftist organisation active in West Germany between 1973 and 1995 Rz (digraph), a digraph of the Polish alphabet RZ Resources, an Australian rare earths mining and processing company