Port Dickson District () is a district in Negeri Sembilan, Malaysia. It is the only coastal district in Negeri Sembilan. The district borders Sepang District, Selangor to the north, the Strait of Malacca to the west, Seremban District to the northeast, Rembau District to the east, and Alor Gajah District, Malacca to the south. It also surrounds Tanjung Tuan, an exclave of Malacca under the jurisdiction of Alor Gajah District, to its southwest.
Port Dickson District is divided into 5 mukims, which are:
List of Port Dickson district representatives in the Federal Parliament (Dewan Rakyat)
List of Port Dickson district representatives in the State Legislative Assembly (Dewan Undangan Negeri)