Count Ádám Forgách de Ghymes et Gács (Slovak: Adam Forgáč; 1601 – 10 June 1681) was a Hungarian soldier and magnate in the Kingdom of Hungary, who served as Judge Royal from 13 October 1670 until his death.

After the outbreak of the Austro-Turkish War (1663–1664), he allowed himself to be outwitted by the Turks and, without a sufficient survey of the situation, launched an attack against allegedly weakened Turkish troops near Štúrovo.

In reality, however, the Turks had prepared a trap for his troops, and in the Battle of Köbölkút on August 6, 1663, only less than 400 of his 5,500 soldiers were saved.

An Ottoman force of about 50,000 men advanced on Nové Zámky and demanded his surrender, which he refused.

After a month and a half long siege, he was forced to surrender to the troops of Grand Vizier Ahmed Köprülü.