Vilmos Nagy de Nagybaczon (30 May 1884 – 21 June 1976) was a commanding general of the Royal Hungarian Army (1920–1945), Minister of Defence, a military theorist and historian.

In 1902, he graduated with honours from the Kun Kollégium high school in Szászváros, and his exemplary record gained him tuition free admittance, with continuing financial support, to the prestigious Ludovica Military Academy.

His outstanding service surpassed that of his fellow officers and four years after receiving his first commission, he completed the Imperial War College in Vienna (1909–1912).

The career of Major Vilmos Nagy continued its uninterrupted rise following the collapse of the short lived Socialist Republic, as he was reassigned to the general staff of the newly formed Royal Hungarian Army.

Within a year, in March 1940, he was appointed as the commanding officer of the 1st Hungarian Army, and two months later, he was promoted to the rank of major general.

In a completely unexpected move on 31 March 1941, the High Command retired him with the rank of lieutenant general, and at this point it seemed that the military career of Vilmos Nagy of Nagybaczon had ended.

Prior to his appointment, the government committed the 2nd Hungarian Army to the Eastern Front, where they eventually met their end by their complete annihilation at Voronezh.

Endre Bajcsy-Zsilinszky, in his memoirs on government related matters, he wrote that in his 10 June submission to the Regent, he praised the service of the departing minister.

The extreme right was not satisfied with distancing him from a position of power and authority, and after the government's takeover by the fascist Arrow Cross, on 16 November 1944, the gendarmerie (csendőrök) arrested him at his Piliscsaba home.

As the Red Army approached, the prisoners, under the command of lieutenant colonel Árpád Barcsay of the gendarmes, were transported to Passau Bavaria, then to Pfarrkirchen, and finally force marched to Gschaid.

From Tann, on Sunday 28 April 1945, together with his brother, he moved to Zimmern [de] where he found accommodations on a Bavarian farm until the US forces reached them on 1 May.

He managed to return to Hungary in 1946, and in the initial period of the governing coalition of the various political factions, he participated as a committee member for the assessment of military pensions.