The recognition of the Seventeenth Karmapa, the head of the Karma Kagyu sect of Tibetan Buddhism, has been the subject of controversy. Since the death of the sixteenth Karmapa, Rangjung Rigpe Dorje, in 1981, two candidates have been put forward:

Both have already been enthroned as 17th Karmapa, and both independently have been performing ceremonial duties in the role of a Karmapa. They have not met, though both have expressed a willingness and desire to meet. The situation has led to deep division among Kagyu followers all over the world. As one academic expert in the field testified in court, while the recognition of Ogyen Trinley "appears to have been accepted by a majority of Karma Kagyu monasteries and lamas, there remains a substantial minority of monasteries and lamas who have not accepted Ogyen Trinley as Karmapa. In particular, these include the Shamar Rinpoche, who historically has been the person most directly involved in the process of recognition." It is difficult to produce an objective description of the events because the most important developments are known only from conflicting accounts by those involved.

The Karmapa (officially His Holiness the Gyalwa Karmapa, sometimes spelled Gyalwang Karmapa) is the head of the Karma Kagyu, the largest sub-school of the Kagyupa (Tibetan Bka' brgyud), itself one of the four major schools of Tibetan Buddhism.

The historical seat of the Karmapas is Tsurphu Monastery in the Tolung valley of Tibet. His Holiness' principal seat in exile is the Dharma Chakra Centre at Rumtek Monastery in Sikkim, India. His regional monastic seats are Karma Triyana Dharmachakra in New York, Dhagpo Kagyu Ling in France and Tashi Choling in Bhutan.

Due to a controversy within the Karma Kagyu school over the recognition process, the identity of the current 17th Karmapa is disputed. See Karmapa controversy for details.

The first Karmapa, Düsum Khyenpa (Dus gsum Mkhyen pa) (1110–1193), was a disciple of the Tibetan master Gampopa. A talented child who studied dharma (Buddhist teachings) with his father from an early age and who sought out great teachers in his twenties and thirties, he is said to have attained enlightenment at the age of fifty while practicing dream yoga. He was henceforth regarded as the Karmapa, a manifestation of Avalokitesvara (Chenrezig), whose coming was predicted in the Samadhiraja Sutra and the Lankavatara Sutra.

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.

Trinley Thaye Dorje (Tibetan: ཕྲིན་ལས་མཐའ་ཡས་རྡོ་རྗེ་, Wylie: Phrin-las Mtha'-yas Rdo-rje) (born 6 May 1983, Lhasa, Tibet Autonomous Region, People's Republic of China) is a claimant to the title of 17th Karmapa.

The Karmapa is head of the Karma Kagyu school, one of the four main schools of Tibetan Buddhism. Ogyen Trinley Dorje and Thaye Dorje are the persisting claimants to that office and title.

Trinley Thaye Dorje is the son of the 3rd Mipham Rinpoche of Junyung Monastery, one of several persons believed^{[by whom?]} to be a reincarnation of Ju Mipham, an important lama of the Nyingmapa school, and Dechen Wangmo, the daughter of a noble family descended from King Gesar of Ling. At the age of six months the boy is reported to have started telling people that he was the Karmapa. (The identification of the 17th Karmapa is disputed. See Karmapa controversy)

In 1988 Shamar Rinpoche went on a secret visit to Lhasa to investigate whether Thaye Dorje was the reincarnation of the Karmapa, because, he said, the boy appeared to him in a dream. In March 1994, Thaye Dorje and his family escaped from Tibet to Nepal and then to India, where Shamar Rinpoche formally recognized him as the 17th Karmapa. In 1994 Thaye Dorje was enthroned by the 14th Kunzig Shamarpa as the 17th Gyalwa Karmapa at the Karmapa International Buddhist Institute in New Delhi, India.

Ogyen Trinley Dorje (Tibetan: ཨོ་རྒྱན་འཕྲིན་ལས་རྡོ་རྗེ།, Wylie: O-rgyan 'Phrin-las Rdo-rje; born June 26, 1985), also written Urgyen Trinley Dorje (Wylie: U-rgyan 'Phrin-las Rdo-rje; or Orgyen Trinley Dorje or Ugyen Trinley Dorje), is a claimant to the title of 17th Karmapa.

The Karmapa is head of the Karma Kagyu school, one of the four main schools of Tibetan Buddhism. Ogyen Trinley Dorje and Thaye Dorje are the persisting claimants to that office and title.

Born in Lhatok Township, Qamdo County, Tibet Autonomous Region, to primarily nomadic parents, Ogyen Trinley Dorje is said to have identified himself to family members as the Karmapa early in childhood. (The identification of the 17th Karmapa is disputed. See Karmapa controversy.) Known as Apo Gaga, he was seven years old before he was recognized by a search party headed by the Tai Situpa, following instructions left by the previous Karmapa in a prophetic letter and hidden in a locket entrusted to Tai Situpa. Ogyen Trinley Dorje was installed at Tsurphu Monastery (Wylie: Mtshur-phu, ZYPY: Curpu), the traditional seat of the Karmapa in Tibet, with the official sanction of the Central People's Government who declared him to be a "living Buddha", the first time a communist Chinese government has recognised a tulku. Critics of this collusion call it a "bad precedent" for the 11th Panchen Lama and the next Dalai Lama, and urged the Tai Situpa to smuggle Ogyen Trinley out of Tibet. The Tai Situpa resisted, insisting that there was a need to "legalize" the boy's position in Tibet, and so Ogyen Trinley Dorje lived at Tsurphu Monastery for another seven years.