Vác (Hungarian pronunciation: [ˈvaːt͡s]; German: Waitzen; Slovak: Vacov; Yiddish: ווייצען) is a thousand-year old city in Pest county in Hungary with approximately 35,000 inhabitants.

[1] Bishops from the Roman Catholic Diocese of Vác were influential within the Kingdom of Hungary, with many serving as chancellors or later becoming archbishops.

During the Habsburg monarchy's wars against the Ottomans, the Austrians won victories against the Turks at Vác in 1597 and in 1684.

[2] According to the Truce of Zsitvatörök, Habsburg control of the fortress at Vác (also known as Vacz) was maintained, and its repair was sanctioned.

During World War II, Vác was captured on 8 December 1944 by Soviet troops of the 2nd Ukrainian Front in the course of the Budapest Offensive.