A bhikkhu is an ordained male in Buddhist monasticism. Male and female monastics are members of the Sangha.
Bhikkhus in Thailand
Tibetan monks
Japanese monks of Jōdo Shinshū, Sōtō, and Shingon Buddhism.
A Cambodian monk in his robes
Buddhist monasticism is one of the earliest surviving forms of organized monasticism and one of the fundamental institutions of Buddhism. Monks and nuns, called bhikkhu and bhikkhuni, are responsible for the preservation and dissemination of the Buddha's teaching and the guidance of Buddhist lay people. Three surviving traditions of monastic discipline (Vinaya), govern modern monastic life in different regional traditions: Theravada, Dharmaguptaka, and Mulasarvastivada.
Monks outside the temple at the Tibetan Buddhist monastery, Rato Dratsang, in India, January 2015.
At the peak of its power, Japan's Enryaku-ji was a huge complex of as many as 3,000 sub-temples and a powerful army of warrior monks (僧兵, sōhei).
Young Buddhist monks in Tibet practising formal debating
A Buddhist monk in Kaohsiung, Taiwan, wearing the robes of an abbot in a monastery