Albert I Lycée, Secondary educational institution in Monaco-Ville, Monaco

Albert I Lycée is a secondary school in Monaco-Ville that follows French curriculum standards and is marked by historic building structures. The campus combines equipped science laboratories, art studios, and specialized classrooms across different subjects.

The main building was constructed between 1665 and 1675 as a convent for noble girls, requested by Catherine-Charlotte de Gramont, wife of Louis I; its vaulting survives. During the French Revolution it became barracks for Sardinian troops, who held it until 18 July 1860. After ten vacant years, Italian Jesuits ran open college courses there from 31 May 1870 until 1910, when Albert I founded the secular School of Monaco. Rainier III renamed it Lycée Albert Ier in 1960.

The school was renamed Lycée Albert Ier by Rainier III in 1960, on its 50th anniversary, and a plaque at the entrance records the building's successive transformations. Its library, inaugurated by Grace Kelly, was renamed the Prince Albert II Library during the 2010 centenary. Alumni include singer Léo Ferré, Prince Albert II (class of 1977) and racing driver Charles Leclerc (class of 2015).

The school is an active secondary institution on the Rock in Monaco-Ville, so the grounds and classrooms are not open to visitors; the entrance plaque recounting the building's transformations can be seen from outside. The Oceanographic Museum, founded by Albert I the same year, stands facing the school.

Inside the school library sits a rare copy of the Encyclopedia by Diderot and d'Alembert, a precious work documenting European intellectual history. This book reveals how the institution values knowledge and learning.