Franciszek Kacper Fornalski (1806-1850) was the Polish officer during the November Uprising.

The elder son of Franciszek Fornalski and Julianna Konaszewska.

Later he graduated from the Infantry Cadet School in Warsaw and joined the Army of Congress Poland.

On 11 October 1831 he arrived from Modlin to Warsaw to the Governmental War Committee.

After the uprising, Franciszek Kacper Fornalski moved to Kunów where worked as an architect.