Kullu is a district in Himachal Pradesh, India. The district stretches from the village of Rampur in the south to the Rohtang Pass in the North.

The largest valley in the district is called the Kullu Valley, which is also known as the Valley of the Gods. There is also a town called Kullu which sits on the banks of the Beas River in the central part of the valley. Another important valley in the district is the Lug valley where the main forest contractors have been extracting timber from the forests for the last 150 years and continue to do so today. Farther north lies the town of Manali.

The ancient seat of the kings of Kullu was at Naggar Castle, about 12 km north of the present town, and thought to have been built in the early 17th century by Raja Sidh Sing. Raja Jagat Singh (1637–72) moved the capital in the middle of the 17th century to its present position, and called it Sultanpur. The Royal compound consists of the "Rupi Palace, several temples, and a long narrow bazaar descending the hill."

Kullu, once known as Kul-anti-peetha - "the end of the habitable world", is the capital town of the Kullu District, in the Indian state of Himachal Pradesh. It is located on the banks of the Beas River in the Kullu Valley about ten kilometres north of the airport at Bhuntar.

Kullu is a broad open valley formed by the Beas river between Manali and Largi. This valley is famous for the beauty and its majestic hills covered with Pine and Deodar Forest and sprawling Apple Orchards.The course of the Beas river presents a succession of magnificent, clad with forests of Deodar, towering above trees of Pine on the lower rocky ridges. Kullu valley is sandwiched between the Pir Panjal, Lower Himalayan and Great Himalayan range.

Kullu (1,220 m or 4,000 ft) was once known as Kulanthpitha - `the end of the habitable world`. Beyond rose the forbidding heights of the Greater Himalayas and, by the banks of the shining river Beas, lay the fabled `Silver Valley`.

The Chinese pilgrim monk Xuanzang visited the Kullu Valley in 634 or 635 CE. He described it as a fertile region completely surrounded by mountains, about 3,000 li in circuit, with a capital 14 or 15 li in circumference. It contained a stupa (tope) built by Ashoka, which is said to mark the place where the Buddha preached to the local people and made conversions, stupa was taken away by a mughal ruler and put in feroz shah kotla maidan in Delhi. There were some twenty Buddhist monasteries, with about 1,000 monks, most of whom were Mahayanist. There were also some fifteen Hindu temples, and people of both faiths lived mixed together. There were meditation caves near the mountain passes inhabited by both Buddhist and Hindu practitioners. The country is said to have produced gold, silver, red copper, crystal lenses and bell-metal.