Lycée Lakanal, Secondary school in Sceaux, France

Lycée Lakanal is a public secondary and higher-education institution in Sceaux, Hauts-de-Seine, with a collège, a lycée and classes préparatoires. Anatole de Baudot built it between 1882 and 1885, inspired by the lycée Michelet in Vanves. The main classrooms and dormitories share one building, alongside a science building, a track and a large park with century-old and rare trees.

Jules Ferry ordered the school built between 1882 and 1885 to plans by architect Anatole de Baudot, on the hygienist model of an English-style "school in the countryside" for gifted but frail boys. It is named after Joseph Lakanal, who in 1794 proposed the founding of over 20,000 schools to the National Convention. It has been a listed monument historique since 2001.

The name honours Joseph Lakanal, who in 1794 proposed the Convention create over 20,000 schools. In the parloir hangs Octave Denis Victor Guillonnet's 1899 fresco, about 4.5 by 15 metres, showing Les Félibres watching the first rugby match in the school park. The school hosts a pôle espoirs rugby, and pupils study English plus Russian, German, Italian, Spanish, Arabic, Greek and Latin.

The campus lies in Sceaux, reachable by RER B from Denfert-Rochereau, the station Parisian pupils once used. The main classrooms and dormitories share one building, and several teachers live on site with boarders. The park, track and rugby facilities serve the Pôle Espoir Rugby; classrooms are heated by space heaters except in the science building and gymnasium.

The school's parloir holds a 1899 fresco by Octave Denis Victor Guillonnet, about 4.5 by 15 metres, showing Les Félibres watching the first rugby match in the park; it is classified. The fictional Kadic Academy in Code Lyoko is modelled on Lakanal, and John le Carré names the school in Tinker Tailor Soldier Spy.