Marian Lalewicz (21 November 1876 – 21 August 1944) - was a Polish architect and one of the main proponents of Academic classicism in interwar Poland.
He was a victim of the Nazi mass murder on Dzika Street during the Warsaw Uprising.
After the Nazi invasion of Poland, Lalewicz served as a director of the emergency medical services (Pogotwie Techniczne) during the Siege of Warsaw.
Under German occupation he was a teacher at one of the secret universities (all education past primary school for Poles had been banned by the Nazis).
Lalewicz was executed during the Warsaw Uprising by German units, in the Mass murder on Dzika street on August 21, 1944.