港区 or 港區 may refer to:
Several places in Japan named Minato-ku (港区):
Minato, Tokyo or Minato City, a special ward in Tokyo, Japan
Minato-ku, Nagoya, a ward of Nagoya, Japan
Minato-ku, Osaka, a ward of Osaka, Japan
The Hong Kong Special Administrative Region (HKSAR) (Chinese: 港區; lit. '[Hong] Kong Region'), especially in several contexts relating to the PRC:
The Hong Kong national security law (Chinese: 港區國安法)
Hong Kong members of the National Committee of the Chinese People's Political Consultative Conference (Chinese: 港區全國政協委員)
Hong Kong delegates of the National People's Congress (Chinese: 港區全國人大代表)