Benneckenstein (German pronunciation: [ˈbɛnəkŋ̍ˌʃtaɪ̯n] ⓘ) is a town in the district of Harz, in Saxony-Anhalt, Germany.

It is located between the villages of Tanne to the north, Trautenstein to the east-northeast and Stiege to the east (all in Saxony-Anhalt), Rothesütte to the south (in Thuringia), Hohegeiß to the west (in Lower Saxony) and Sorge to the north-northwest (in Saxony-Anhalt).

The village lies at a height of about 500 to 542 m above NN[2] on the upper reaches of the Rappbode.

The organist, composer and music theorist Andreas Werckmeister was born in Benneckenstein in 1645.

The secluded forest village of Grüntal (515 m), with its forester's lodge and a few holiday homes, is located by a clearing northeast of Benneckenstein and is also checkpoint 49 in the Harzer Wandernadel hiking network.