PZL Mielec, formerly WSK-Mielec and WSK "PZL-Mielec" is a Polish aerospace manufacturer based in Mielec. It is the largest aerospace manufacturer in postwar Poland. In 2007, it was acquired by Sikorsky Aircraft Corporation, which retained the brand name. Between 1948 and 2014, the company manufactured approximately 15,600 aircraft.

Mielec is the largest city and seat of Mielec County. Mielec is located in south-eastern Poland, in the Subcarpathian Voivodeship. The population of Mielec in December 2021 was 59,509.