Jin Prefecture, also known by its Chinese name Jinzhou, was a prefecture of imperial China. Its seat—also known as Jinzhou—was at Luyang (near modern Mayang, Hunan).
Jin was created from Chen Prefecture (Chinese: {{linktext|宸|州, Chénzhōu) in AD 686 under the Tang Dynasty. It was later renamed Luyang Commandery (Chinese: {{linktext|盧陽郡, Lúyángjùn).