French caricaturist and painter, Leandre was born at Champsecret (Orne). He studied painting under Émile Bin and Alexandre Cabanel. From 1887 he exhibited portrait and genre pictures at the Salon. He is best known, however, for his comic drawings and caricatures. The series of the "Gotha des souverains," published in Le Rire and L'Assiette au Beurre, placed him in the front rank of modern caricaturists. He published a series of albums: Nocturnes, Le Musée des souverains, and Paris el la provénce.
In 1904, he created the Société des Peintres Humoristes. Léandre produced admirable work in lithography, and designed many memorable posters, such as the "Yvette Guilbert." "Les nouveaux maries," "Joseph Prudhomme," "Les Lutteurs," and "La Femme au chien."
He was created a knight of the Legion of Honour, and in 1921 he received the Medal of Honour of the Société des artistes français, in the engraving section. In 1925, Charles Léandre was promoted an Officer of the Legion of Honour. He died in 1934 in his Caulaincourt street studio in Montmartre.