Martial Joseph Armand Herman (29 August 1759 – 7 May 1795) was a French lawyer and a chief judge during the Reign of Terror.

On 26 July 1783, he was admitted to the bar, and in 1786 he bought the post of substitute attorney general of the provincial Estates of Artois, which seated in Arras.

He presided at the trial of Marie-Antoinette, and the Girondins in October, Philippe Égalité, Madame Roland, and Jean Sylvain Bailly in November, and Jacques Hébert, Georges Danton and Camille Desmoulins in March/April 1794.

[2][3] On the proposal of Lazare Carnot, Herman set up twelve commissions created by the executive decree of 12 Germinal (1 April).

On 6 May 1795, after receiving the verdict sentencing him to death - with a majority of one vote - he flung his hat out of the window in a moment of rage.