Involution

Involution may refer to:


 * Involute, a construction in the differential geometry of curves
 * Agricultural Involution: The Processes of Ecological Change in Indonesia, a 1963 study of intensification of production through increased labour inputs
 * Neijuan, an English loanword of the Chinese word for involution.
 * Involution (mathematics), a function that is its own inverse
 * Involution (medicine), the shrinking of an organ (such as the uterus after pregnancy)
 * Involution (esoterism), several notions of a counterpart to evolution
 * Involution (Meher Baba), the inner path of the human soul to the self as described by Meher Baba
 * Involution (Sri Aurobindo), term in the philosophy of Sri Aurobindo
 * Involution algebra, a *-algebra: an algebra equipped with an involution
 * Involution (album), a 1998 album by multi-instrumentalist Michael Marcus, with the Jaki Byard trio