Jean Claude Eugène Péclet (10 February 1793 – 6 December 1857) was a French physicist.

Péclet became, in 1812, one of the first students of the École Normale in Paris with Gay-Lussac and Dulong being his professors.

Being nominated maître de conférences (tenured position) at the École Normale Supérieure, he returned to Paris.

In 1829, he became a professor of physics at the École Centrale des Arts et Manufactures that was being founded by the businessman Alphonse Lavallée, by Péclet, and by two other scientists, Jean-Baptiste Dumas and Théodore Olivier.

His salary was then 3000 Francs per year, plus a share of the profits of this private engineering school.