The Sakya (Tibetan: ས་སྐྱ་, wylie: Sa skya, "pale earth") school is one of four major schools of Tibetan Buddhism, the others being the Nyingma, Kagyu, and Gelug. It is one of the Red Hat sects along with the Nyingma and Kagyu.

The name Sakya ("pale earth") derives from the unique grey landscape of Ponpori Hills in southern Tibet near Shigatse, where Sakya Monastery, the first monastery of this tradition, and the seat of the Sakya School was built by Khon Konchog Gyalpo (1034–1102) in 1073.

The Sakya tradition developed during the second period of translation of Buddhist scripture from Sanskrit into Tibetan in the late 11th century. It was founded by Drogmi, a famous scholar and translator who had studied at the Vikramashila University directly under Naropa, Ratnakarashanti, Vagishvakirti and other great panditas from India for twelve years.

Konchog Gyalpo became Drogmi's disciple on the advice of his elder brother.

The tradition was established by the "Five Venerable Supreme Masters" starting with the grandson of Khonchog Gyalpo, Kunga Nyingpo, who became known as Sachen, or "Great Sakyapa":

Sakya Trizin (Tibetan: ས་སྐྱ་ཁྲི་འཛིན།, ZYPY: Sa'gya Chizin, literally "Sakya Throne Holder"; Chinese: 萨迦法王 or 萨迦崔津) or Sa'gya Gongma Rinboqê (གོང་མ་རིན་པོ་ཆེ།) is the traditional title of the head of the Sakya Order of Tibetan Buddhism.

The Sakya Order of Tibetan Buddhism was founded in 1073, when Khon Konchog Gyalpo (a.k.a. Kön Gönqog Gyäbo), a member of Tibet’s noble Khön (Koin) family, established a monastery in the region of Sakya, Tibet, which became the headquarters of the Sakya Order of Tibetan Buddhism. Since that time, the leadership of the Sakya Order has descended within the Khön family.

The current Sakya Trizin is the 41st Sakya Trizin. His legal name is "Sakya Trizin" and he is referred to as His Holiness Sakya Trizin. His religious name is Ngawang Kunga Tegchen Palbar Trinley Samphel Wangyi Gyalpo. H.H. Sakya Trizin is considered second only to His Holiness the Dalai Lama in the spiritual hierarchy of Tibetan Buddhism.

Sakya Trizin was born on September 7, 1945 in Tsedong, near Shigatse, Tibet. From his father, Vajradhara Ngawang Kunga Rinchen, he received important initiations and teachings in the Sakya lineage. He began intensive religious study at the age of five. In 1952, he was officially designated as the next Sakya Trizin by His Holiness the Fourteenth Dalai Lama. He continued intensive training from his main teacher Ngawang Lodroe Shenpen Nyingpo and many other famous Tibetan scholars, studying extensively in both the esoteric and exoteric Buddhist traditions. In 1959, at the age of fourteen, he was formally enthroned as head of the Sakya Order of Tibetan Buddhism. In the same year, due to the political situation in Tibet, the Sakya Trizin, his family, and many lamas and monks from the Sakya Monastery relocated to India.

The Dalai Lama is a high lama in the Gelug or "Yellow Hat" branch of Tibetan Buddhism. The name is a combination of the Sino-Mongolian word далай (dalai) meaning "Ocean" and the Tibetan word བླ་མ་ bla-ma (with a silent "b") meaning "chief, high priest".

In religious terms, the Dalai Lama is believed by his devotees to be the rebirth of a long line of tulkus who are considered to be manifestations of the bodhisattva of compassion, Avalokiteśvara. Traditionally, the Dalai Lama is thought of as the latest reincarnation of a series of spiritual leaders who have chosen to be reborn in order to enlighten others. The Dalai Lama is often thought to be the leader of the Gelug School, but this position belongs officially to the Ganden Tripa, which is a temporary position appointed by the Dalai Lama who, in practice, exerts much influence. The line of Dalai Lamas began as a lineage of spiritual teachers; the 5th Dalai Lama assumed political authority over Tibet.

For certain periods between the 17th century and 1959, the Dalai Lamas sometimes directed the Tibetan government, which administered portions of Tibet from Lhasa. The 14th Dalai Lama remained the head of state for the Central Tibetan Administration ("Tibetan government in exile") until his retirement on March 14, 2011. He has indicated that the institution of the Dalai Lama may be abolished in the future, and also that the next Dalai Lama may be found outside Tibet and may be female. The Chinese government was very quick to reject this and claimed that only it has the authority to select the next Dalai Lama.