Petry, or Pétry, is a surname. Notable people with the surname include:
Ann Petry (1908–1997), American authorCássio Petry (born 1978), Brazilian canoeistDan Petry (born 1958), American baseball playerFrauke Petry (born 1975), German chemist, businesswoman and politician (AfD)Jeff Petry (born 1987), American ice hockey playerJuliusz Petry (1890–1961), Polish writerLasse Petry (born 1992), Danish footballerLeroy Petry (born 1979), American soldier and Medal of Honor recipientLucile Petry Leone (1902–1999), American nurseMichael Petry (born 1960), American artistMichael Petry (footballer) (born 1976), German footballerValentin Petry (1928–2016), German racing cyclistWolfgang Petry (born 1951), German musicianZsolt Petry (born 1966), Hungarian footballer