Kanázs Castle, Medieval castle ruin in Mátraderecske, Hungary.

Kanázs Castle is a ruin in the Mátra mountains south of Mátraderecske, of which only the watchtower still stands. Carved stones on its eastern side have survived, and the small fort is thought to have been a 14th-century tarisznyavár, a guard post whose garrison rotated with a bag's worth of provisions.

Built during the 14th century by the Recsky family, the castle served as a strategic fortification until it was destroyed following Ottoman conquest after the fall of Eger.

The name Kanázsvár comes from the Hungarian "tarisznyavár": a small guard post whose garrison rotated with only a bagful of provisions, enough for a few days. The nearby village of Recsk appears as "De Reske" in the papal tithe register of 1332–37 and belonged to the Recsky family from 1350; Tamás Recsky and his sons Zsigmond and Tamás held it in 1427, Demeter Recsky in 1513, and his sons Zsigmond and György in 1571.

Visitors must hike approximately 30 minutes from the main road between Mátraderecske and Recsk, including a steep ascent through dense vegetation to reach the ruins.

Only the watchtower of Kanázs Castle still stands; the carved stones on the eastern side have outlasted the rest of the structure. The castle was probably a tarisznyavár, a small guard post whose garrison rotated with only a bag's worth of provisions, enough for a few days.