Port Dickson is the second smallest district in Negeri Sembilan. It is geographically located on the west coast of Negeri Sembilan. It borders Seremban and Rembau on the east while Sungai Sepang and Sungai Linggi divide it from Selangor & Melaka respectively.

Formerly known as "Tanjung" to the Malays and "Alang" to the Chinese, Port Dickson derived its name from Sir John Frederick Dickson, the British resident responsible in developing the area into a significant trading port in the 18th century.