Piotr Grzegorz Wozniak (born 13 February 1956 in Warsaw) is a Polish public servant and geologist.
Between 2005–2007 he served as Minister of Economy, between 2011–2013 he was Undersecretary of State at the Ministry of Environment and Chief State Geologist, since 2016 he has been serving as President of the Management Board of the Polish Oil and Gas Company (PGNiG).