(b. 1817, Bruxelles, d. 1879, Laeken)
Belgian architect. He trained at the Académie Royale des Beaux-Arts in Brussels under Tilman-François Suys, and then in Paris under Louis Visconti (1791-1853) and Jean-Nicolas Huyot (1780-1840).
Poelaert first came to attention with his winning competition entry for the Congress Column in 1849. He was made city architect of Brussels in 1856. His most significant commission was the colossal Palace of Justice in Brussels, the largest single building constructed in the 19th century and even copied in smaller scale at the Palace of Justice in Peru.
Poelaert Place, the largest square in Brussels, lies before the Palace of Justice.