Bohdan Jan de Nisau (18 August 1896 − 26 January 1943) was a Polish socialist and communist activist, chemical engineer, participant in the Silesian Uprisings and prisoner of Stalin.

In 1914 he graduated from the Trade School in Mława and started chemical studies at the University of Warsaw, which he never completed.

As a member of PMO he took part in disarming German soldiers in 1918, when Poland regained its independence.

In August 1920 de Nisau took part in the Second Silesian Uprising and later was a member of the Wawelberg Group.

His wife fled back to Poland with their little son, convinced of her husband's death.