The Tampin District (Jawi script: تمڤين; Chinese: 淡边) is a town, a district and a parliamentary constituency in Negeri Sembilan, Malaysia, however part of the town spills over into the neighbouring state of Malacca, as it is located along the Malacca-Negeri Sembilan border. The district covers 129.49 square kilometres (50.00 sq mi) and is further divided into four adat socio-political provinces: Tampin town, Air Kuning, Gemencheh and Gemas.

Tampin gets its name from the container or pouch weaved from the pandanus fronds. The container was used to store condiments such as the kelamai or dodol and the shrimp paste belacan. The district of Tampin is also called Luak Tampin as the word luak is the local term for district.

Tampin was originally governed by the Rembau administration. After the Naning War in 1832 Raja Ali declared himself the ruler of Seri Menanti and his son-in-law, Syed Shaaban, as the ruler of Rembau. This enraged other rulers of Negeri Sembilan as they had no right to the posts. In 1834 a civil war ensued, which resulted in Raja Ali and Syed Shaaban retreating to Tampin and the area from Mount Tampin to Putus Hill being removed from Rembau. This area consisting of the provinces Repah, Keru, Tebong and Tampin Tengah formed the district known as Tampin. Syed Shaaban became the first ruler of Tampin and proclaimed himself the title Tunku Besar Tampin. The district is one of the original nine states collectively known as Negeri Sembilan, which means "Nine States" in Malay.

On 11 March 1889, the Governor of the Straits Settlements, Sir Cecil Smith, held a meeting with the rulers of Jelebu, Sungai Ujong, Rembau, Seri Menanti and Tampin. The purpose of this meeting was to combine the districts to better manage them under British rule. Tampin, Rembau and Seri Menanti agreed to the proposal and were united as the Seri Menanti Confederation. The newly formed confederation accepted Martin Lister as its first British Resident.

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