USS Comstock (LSD-19) was a Casa Grande-class dock landing ship of the United States Navy. She was the first navy ship named in honor of the Comstock Lode in Nevada, discovered in 1859, which was one of the richest deposits of precious metals known in the world. As of 2011, the ship is in active service at Republic of China Navy as ROCS Chung Cheng (LSD-191).