乔治-路易·勒克莱尔，布丰伯爵（Georges-Louis Leclerc, Comte de Buffon 法语发音：[ʒɔʁʒ lwi ləklɛʁ kɔ̃t də byfɔ̃]，1707年9月7日－1788年4月16日），又译蒲丰、比丰，法国博物学家、数学家、生物学家、启蒙时代著名作家。布丰的思想影响了之后两代的博物学家，包括达尔文和拉马克。 更被誉为“18世纪后半叶的博物学之父”。

Georges-Louis Leclerc, Comte de Buffon (French pronunciation: ​[ʒɔʁʒ lwi ləklɛʁ kɔ̃t də byfɔ̃]; 7 September 1707 – 16 April 1788) was a French naturalist, mathematician, cosmologist, and encyclopedic author.

His works influenced the next two generations of naturalists, including Jean-Baptiste Lamarck and Georges Cuvier. Buffon published thirty-six quarto volumes of his Histoire Naturelle during his lifetime; with additional volumes based on his notes and further research being published in the two decades following his death.