Atal Tunnel, named after former Prime Minister of India, Atal Bihari Vajpayee is a highway tunnel built under the Rohtang Pass in the eastern Pir Panjal range of the Himalayas on the National Highway 3 in Himachal Pradesh, India. At a length of 9.02 km, it is the highest highway single-tube tunnel above 10,000 feet (3,048 m) in the world. With the existing Atal Tunnel and after the completion of under-construction Shinku La Tunnel, which is targeted to be completed by 2025, the new Leh-Manali Highway via Nimmu–Padum–Darcha road will become all-weather road.

Atal Bihari Vajpayee was an Indian politician and poet who served three terms as the 10th Prime Minister of India, first for a term of 13 days in 1996, then for a period of 13 months from 1998 to 1999, followed by a full term from 1999 to 2004. He was the first non-Indian National Congress prime minister to serve a full term in the office. Vajpayee was one of the co-founders and a senior leader of the Bharatiya Janata Party. He was a member of the RSS, a Hindu nationalist volunteer organisation. He was also a Hindi poet and a writer.