Tarn Taran Sahib is a city in the state of Punjab, in far northern India. It is the district headquarters and hosts the municipal council of Tarn Taran district.
Tarn Taran Sahib was founded by the Fifth Sikh Guru, Shri Guru Arjan Dev Ji (1563–1606). He laid the foundation of Sri Tarn Taran Sahib Temple. Tarn Taran Sahib was part of the Bhangi Sikh Dynasty ruled by a powerful Sikh family of the Dhillon Clan from 1716-1810. In 1947, the year of the Partition of India and the Partition of Punjab, Tarn Taran was the only tehsil (district) in Punjab, along with Shiekhupura, Ludhiana, Jalandhar, Hoshiapur, Kapurthala, Amritsar, Lyallpur, and Patiala, with a majority Sikh population. The city was a center of the Sikh insurgency during the 1980s and early 1990s. Tarn Taran Sahib was suggested as the capital of Khalistan, the proposed Sikh independent nation. The main occupation in this area is agriculture and agroindustry, with very few other industries. Tarn Taran district was formed in 2006. The declaration to this effect was made by Captain Amarinder Singh, Ex-Chief Minister of Punjab, during the celebrations marking the martyrdom day of Sri Guru Arjan Dev Ji. With this, it became the 19th district of Punjab.