品川区（日语：品川区／しながわく）位于日本东京都，名称是由境内目黑川的别名「品川」而来。本区西望富士山、东濒东京湾，是东京的海关区。

区民平均年龄为43.82岁。（2008年（平成20年）1月1日）

2005年夜间人口（居住者）为344,888人，区外通勤者与通学生、居住者在内的区内日间人口达505,034人，为夜间人口的1.464倍。

Shinagawa(品川区,Shinagawa-ku) is a special ward in Tokyo, Japan. While somewhat misleadingly referred to as Shinagawa City in bureaucratic English translations (it is not a city in its own right, but a subsection of the metropolis of Tokyo), in natural English it is more commonly known simply as Shinagawa, as Shinagawa Ward, or (particularly in street addresses) as Shinagawa-ku. The ward is home to ten embassies.