Mahākāśyapa (Sanskrit; Pali: Mahākassapa; Japanese: Maha Kasho or Makakasho) or Kāśyapa was a brahman of Magadha, who became one of the principal disciples of Śākyamuni Buddha and who convened and directed the first council. Mahākāśyapa is one of the most revered of the Buddha's early disciples, foremost in ascetic practices. He is often depicted in statuary together with Ananda, each standing to one side of the Buddha.

Zen purports to lead its adherents to insights akin to that mentioned by Śākyamuni Buddha in his Flower Sermon in which he held up a white flower and just admired it in his hand. Mahākāśyapa smiled faintly, and Śākyamuni Buddha picked that disciple as one who truly understood him and who was worthy to be his successor.

The words of the Śākyamuni Buddha addressed to Mahākāśyapa are described below:

I possess the true Dharma eye, the marvelous mind of Nirvana, the true form of the formless, the subtle dharma gate that does not rest on words or letters but is a special transmission outside of the scriptures. This I entrust to Mahākāśyapa.