Dietrich I, Count of Hohnstein

Dietrich I (documented 1209–1249) was Count of Hohnstein, a Harz comital dynasty, and Vogt, or lay protector, of Homburg monastery on the Unstrut. Before 1231 he married Hedwig, daughter of Count Frederick II of Brehna.

In 1231 he attended the imperial court assembly at Worms. He is last recorded in 1249 and died on 23 July that year. His son Henry I succeeded him in the county and added the Klettenberg lordship in 1253.