Armand Nompar de Caumont, 2nd Duke of La Force (30 October 1580 – 16 December 1675) was a Marshal of France and peer of France.

[1]He followed his father in most of his expeditions, became a maréchal de camp in 1625, defeated and captured General Colloredo at Baccarat in 1636, had two horses killed under him at the siege of Hondarribia in 1638 and became lieutenant général in 1641.

[2] First marquis de La Force, later duc de La Force, he fought in the wars of Louis XIII and Louis XIV in Italy and Germany.

[3] He died at the Château de La Force in the Dordogne on 16 December 1675, without heir.

[1] The title of Duc de La Force went to his younger brother Henri-Nompar.