Keshin may refer to:

• Keshin, Japanese term for reincarnation; specifically the physical body of the Buddha that appears in this world
• {{Interlanguage link multi|化身 (渡辺淳一)|ja|3=Keshin (novel)|lt=Keshin (novel)}}, a 1984 novel by Junichi Watanabe 1985
• Keshin (film), a 1986 Japanese film with Hitomi Kuroki, based on the novel
• "Keshin" (song), a 2009 song by Masaharu Fukuyama
• Keshin, Iran, alternative spelling of Cheshīn, Iran
• Sultan of Keshin, old spelling of the lord of Socotra who resided at Qishn on the Yemen mainland
• Keshin, old spelling of Qishan (official)

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