XYZ may mean: · Cartesian coordinate system (x,y,z) · CIE 1931 color space, color coordinates called "XYZ" · XYZ , an abortive rock project featuring Jimmy Page, Chris Squire and Alan White · XYZ · XYZ Affair, a diplomatic fiasco that occurred between the United States and France in 1797 · The XYZ Affair, an indie rock band from Brooklyn, NY · XYZ Computer, first Polish electronic stored program computer · XYZnetworks, an Australian production company · Your Fly is Open, or "Examine Your Zipper" · XYZnet a British Internet Company. Using "XYZ" and "Net" as a means to convey generality · XYZ Records, a record label · XYZ Saxophone Quartet XYZXYZ