August Chełkowski (Polish pronunciation: [ˈauɡust xɛwˈkɔfskʲi], February 27, 1927 – October 31, 1999) was a prominent Polish physicist and politician.Born in the small village of Telkwice, then in East Prussia (then a part of Weimar Republic) he was a son of Franciszek Chełkowski, a wealthy landowner and prominent activist of the Polish community in Prussia and his wife Emilia (maiden name Mieczkowska).