PZ may refer to:
The PZL W-3 Sokół (en: Falcon) is a Polish medium-size, twin-engine, multipurpose helicopter manufactured by PZL-Świdnik (now AgustaWestland Świdnik).
The PZL SW-4 Puszczyk (en: tawny owl) is a Polish light single-engine multipurpose helicopter manufactured by PZL-Świdnik.
The PZL P.24 was a Polish fighter aircraft, designed in mid-1930s in the PZL factory in Warsaw. It was exported to several countries, but not used in Poland.
PZL-104 Wilga (golden oriole) is a Polish designed and built short-takeoff-and-landing (STOL) Civil Aviation utility aircraft manufactured by PZL "Warszawa-Okęcie".
The PZL-Mielec M-18 Dromader (Polish: "Dromedary") is a single engine agricultural aircraft that is manufactured by PZL-Mielec in Poland.
PZL (Państwowe Zakłady Lotnicze - State Aviation Works) was the main Polish aerospace manufacturer of the interwar period, based in Warsaw, functioning in 1928-1939. The abbreviation was thereafter - from late 1950s - used as an aircraft brand and as a part of names of several Polish state-owned aerospace manufacturers referring to traditions of the PZL, belonging to the Zjednoczenie Przemysłu Lotniczego i Silnikowego PZL - PZL Aircraft and Engine Industry Union.