Pierre Guillaume Frédéric le Play (bahasa Prancis:[lə.plɛ]; 11 April 1806–5 April 1882) adalah seorang insinyur, sosiolog dan ekonom asal Prancis. Le Play menuntut ilmu di École Polytechnique dan École des Mines.
Sumber
Brooke, Michael Z. (1970). Le Play, Engineer and Social Scientist: The Life and Work of Frederic Le Play. Harlow UK: Longmans.
Herbertson, Fanny Louisa Dorothea (1950). The Life of Frédéric Le Play, Ledbury, Herefordshire: Le Play House Press.