Buddhism in Pakistan took root some 2,300 years ago under the Mauryan king Ashoka. Buddhism was the religion of predominantly Buddhist empires such as the Indo-Greek Kingdom, the Kushan Empire, and the Maurya Empire of Ashoka which ruled over what is now Pakistan.
Buddhism first reached what is now Pakistan during Ashoka’s reign when he sent a monk from Varanasi called Majjhantika to preach in Kashmir and Gandhara. 
In 2012, the National Database and Registration Authority (NADRA) indicated that the contemporary Buddhist population of Pakistan was minuscule, with 1,492 adult holders of national identity cards (CNICs). The total population of Buddhists is therefore unlikely to be more than a few thousand. In 2017, the number of Buddhist voters was stated to be 1,884, and they were mostly concentrated in Sindh and Punjab.
The only functional Buddhist temple in Pakistan is in the Diplomatic Enclave at Islamabad, used by Buddhist diplomats from countries like Sri Lanka.
See also: Patola Shahis
Buddhism came to Gilgit Baltistan in the late 7th century when most of the masses were practicing the Bon religion. Before the arrival of Islam, Tibetan Buddhism and Bön, to a lesser extent, were the main religions in Baltistan. Buddhism can be traced back to before the formation of the Tibetan Empire. The region has a number of surviving Buddhist archaeological sites, including the Manthal Buddha Rock—a rock relief of the Buddha at the edge of the village (near Skardu)—and the Sacred Rock of Hunza. Nearby are former sites of Buddhist shelters.
Baltistan was Buddhist majority until the arrival of Islam in this region in the 15th century. As most of the people converted to Islam, the presence of Buddhism in this region has now been limited to archeological sites, with the remaining Buddhists moving east to Ladakh, where Buddhism is the majority religion.
Main article: Gandharan Buddhism
The majority of people in Gandhara, present-day Southern Khyber Pakhtunkhwa province, were Buddhist. Gandhara was largely Mahayana Buddhist, but it was also a stronghold of Vajrayana Buddhism and Hinduism.
Buddhist sites in Sindh are numerous but ill preserved in various stages of deterioration. Sites at Brahmanabad (Mansura Sanghar district) include a Buddhist stupa at Mohenjo-daro; Sirah-ji-takri near Rohri, Sukkur; Kahu-Jo-Daro at Mirpur Khas, Nawabshah; Sudheran-Jo-Thul near Hyderabad; Thul Mir Rukan stupa; Thul Hairo Khan Stupa; Bhaleel-Shah-Thul square stupas (5th-7th century A.D) at Dadu, and Kot-Bambhan-Thul buddhist tower near Tando Muhammad Khan. Many terracotta tiles from Kaho-Jo-Daro and Buddha statues are exhibited in Chatrapati Shivaji Museum, Mumbai.
The presence of Pakistani Buddhists in modern Pakistan is unclear, although a few Pakistanis have reported themselves as Buddhist. A report mentions that they are only found in the Azad Kashmir region. The Nurbakhshi sect is said to retain some elements of Buddhism.
According to the National Database and Registration Authority (NADRA), there were 1,492 buddhists in holding national identity cards (CNICs) in 2012. In 2017, it increased to 1,884 holders. They are mostly concentrated in Sindh and Punjab regions. According to a report, most of the Baori Buddhists do not have CNIC cards, and the actual Buddhist population could exceed 16,000.
In Punjab, Buddhists live primarily in the outskirts of the Mandi Yazman and Rahimyar Khan of Rohi region. Today, they have around 15 colonies in various villages of Mandi Yazman.
Tridev Roy, the Chakma chief, supported Pakistan during the 1971 Bangladesh Liberation War; he then left the Chittagong region and settled in Pakistan. He claimed to represent the Buddhists of Pakistan by founding and chairing the "Pakistan Buddhist Society" from 1996 until his death in 2012. His family stayed behind in Bangladesh.
Lala Rajoo Raam is the representative of the Baori Buddhists community. He is also a councillor for Chak number 75 DB, Union Council number 88. He also twice contested elections for the Punjab assembly.
Gandhara remained largely Buddhist until around 10th century CE, when Sultan Mahmud conquered the region and introduced Islam. Muslims settled in the region, and Buddhists emigrated.[page needed]
Hinduism and Buddhism was practiced by the majority of the population of Sindh up to the Arab conquest by the Umayyad Caliphate in 710 CE. These regions became predominantly Muslim during the rule of Delhi Sultanate and later the Mughal Empire due to the missionary Sufi saints, whose dargahs (shrines) dot the landscape of Pakistan and the rest of South Asia.
The Swat Valley in Pakistan has many Buddhist carvings and stupas, and Jehanabad contains a Seated Buddha statue. Kushan-era Buddhist stupas and statues in Swat valley were demolished by the foreign-funded Taliban and after two attempts by them, the Jehanabad Buddha's face was destroyed by dynamite. Only the Bamiyan Buddhas were larger than the carved giant Buddha statue in Swat near Mangalore. The government did nothing to safeguard the statue after the initial attempt at destroying it, which did not cause permanent damage, but when the second attack took place on the statue, its feet, shoulders and face were demolished. Islamists such as the Taliban and looters destroyed much of Pakistan's Buddhist artifacts left over from the Buddhist Gandhara civilization, especially in Swat Valley. The Taliban deliberately targeted Gandhara Buddhist relics for destruction. The Christian Archbishop of Lahore Lawrence John Saldanha wrote a letter to Pakistan's government denouncing the Taliban activities in Swat Valley including their destruction of Buddha statues and their attacks on Christians, Sikhs, and Hindus. Gandhara Buddhist artifacts were also looted by smugglers. A group of Italians helped repair the Buddha at Jahan Abad, Swat.
In March 2013, a group of around 20 Buddhist monks from South Korea made the journey to the monastery of Takht-i-Bahi, 170 kilometers (106 miles) from Islamabad. The monks defied appeals from Seoul to abandon their trip for safety reasons, and were guarded by Pakistani security forces on their visit to the monastery, built of ochre-colored stone and nestled on a mountainside. From around 1,000 years BCE until the 7th century CE, northern Pakistan and parts of modern Afghanistan formed the Gandhara kingdom, where Greek and Buddhist customs mixed to create what became the Mahayana strand of the religion. The monk Marananta set out from what is now northwest Pakistan to cross China and spread Buddhism in the Korean peninsula during the 4th century. The authorities are even planning package tours for visitors from China, Japan, Singapore and South Korea, including trips to the Buddhist sites at Takht-e-Bahi, Swat, Peshawar and Taxila, near Islamabad.
Takht means “throne” and bahi, “water” or “spring” in Persian/Urdu. The monastic complex was called Takht-i-Bahi because it was built atop a hill and also adjacent to a stream. Located 80 kilometers from Peshawar and 16 kilometers Northwest of the city of Mardan, Takht-i-Bahi was unearthed in early 20th century, and in 1980, it was included in the UNESCO World Heritage list as the largest Buddhist remains in Gandhara, along with the Sahr-i-Bahlol urban remains that date back to the same period, located about a kilometer south.
The modern town of Taxila is 35 km from Islamabad. Most of the archaeological sites of Taxila (600 BC to 500 AD) are located around Taxila Museum. For over 1,000 years, Taxila remained famous as a center of learning Gandharan art of sculpture, architecture, education and Buddhism in the days of Buddhist glory. There are over 50 archaeological sites scattered in a radius of 30 km around Taxila. Some of the most important sites are the Dhamarajika Stupa and Monastery (300 BC - 200 AD), Bhir Mound (600-200 BC), Sirkap (200 BC - 600 AD), Jandial Temple (c.250 BC) and Jaulian Monastery (200 - 600 AD).
A museum comprising various sections with rich archaeological finds of Taxila, arranged in chronological order and properly labeled, has been established close to the site.
Mingora, 3 km away from Saidu Sharif, has yielded magnificent pieces of Buddhist sculpture and the ruins of a great stupa. Shingardar Stupa is one of the most famous stupas located near Bariko. Other stupas include Amaan Kot and Jehan-a-Abad.
The lush-green valley of Swat District—with its rushing torrents, icy-cold lakes, fruit-laden orchards and flower-decked slopes—is ideal for holiday makers intent on relaxation. It also has a rich historical past: "Udayana" (the "Garden") of the ancient Hindu epics, "the land of enthralling beauty" where Alexander the Great fought and won some of his major battles before crossing over to the plains of Pakistan, and "the valley of the hanging chains" described by the famous Chinese pilgrim-chroniclers Faxian and Xuanzang in the 5th and 7th centuries. Swat was once a cradle for major strands of Buddhism, where 1,400 monasteries flourished: Little Vehicle, Great Vehicle and the Esoteric sects. It was the home of the famous Gandhara School of Sculpture, which was an expression of Greco-Roman form in the local Buddhist tradition.
However, the ruins of great Buddhist stupas, monasteries and statues are found all over Swat.
Main article: List of people from Gandhara
Some Buddhist scholars who hailed from present-day regions of Pakistan includes
The Taliban destroyed the Buddhist statues and stupas where we played Kushan kings haram Jehanabad Buddha.