Prince Zdzisław Lubomirski (pronounced [ˈʑd͡ʑiswaf lubɔˈmirskʲi]; 1865–1943) was a Polish aristocrat, landowner, lawyer, a conservative politician and social activist.

Together with his wife, he lived in a house in Warsaw district of Frascati, and in a family real estate located in the village of Mala Wies, near Grójec.

Since his patriotic parents wanted their son to be raised in a Polish spirit, as a child he was sent to Austrian Galicia, where he attended Kraków's St. Anna High School.

In 1904, he became a deputy chairman of Warsaw Association of Charity, and a curator of the Ophthalmic Institute, which provided free eye exams for the poor.

Lubomirski refused to leave the city, and with permission of German authorities, he was named chairman of the Central Civil Committee.

On July 16, 1916, with permission of German authorities, elections for Warsaw local government took place, after which Lubomirski became the mayor of the city.

A year later, on September 16, 1917, the Germans created a provisional government of Poland, the Regency Council, led by Prince Lubomirski,[4] one of its three members along with Archbishop Aleksander Kakowski, and Józef Ostrowski.

Lubomirski himself regarded Józef Piłsudski as an excellent politician and statesman, and supported Pilsudski's nomination for the post of the head of state (see Naczelnik Panstwa).

Lubomirski disliked the so-called colonels’ regime, and in the late 1930s, he organized several secret meetings in which the political situation of the Second Polish Republic was discussed.

In the early months of German occupation of Poland, he worked on creating an underground government under General Juliusz Rómmel, in which he was to be foreign minister.