Kakuin 覺印 (fl. early-to-mid 12th c.; active 1161) was a Japanese Shingon master who resided in old age at the Shirakawa monks’ quarters 白川僧房 in Heian-kyō. His one extant work KR6t0186 Shìxiàng liàojiǎn is dated by its terminal colophon to Eiryaku 2 (1161) and signed “recorded by the elderly Kakuin” (隱老覺印記之). His precise lifedates are unknown, but the work places him in the late-Heian generation of Shingon ritual reformers concerned with the integrity of kuden transmission. The work’s polemical tone — pointing to widespread errors in the bessen-hō tradition — anticipates the more programmatic reformations of Kakuban 覺鑁 a generation later.
Surviving work in the Kanripo corpus: KR6t0186 Shìxiàng liàojiǎn (1 fasc., 1161 CE).