Pierre Lesne (9 April 1871 – 10 November 1949) was a French entomologist who specialized in the beetles, particularly the wood boring beetles of the family Bostrychidae.
His grandfather Pierre Joigneaux was an agronomist from the Côte-d'Or.
He went to study at Collège Chaptal, and spent time with the insect collections at the museum where he met Émile Blanchard, then a blind teacher who needed his hand to be guided on a poster by a preparator while he gave his classes.
He also was influenced by Hippolyte Lucas, E.-L. Bouvier, and Charles Brongniart.
[1][2] Lesne collected in Algeria and on the Canary Islands.