Trepanation (disambiguation)

Trepanning is a form of surgery in which a hole is bored into the skull.

Trepanation or Trepanning may also refer to:
 * Trepanning (manufacturing), a type of drilling designed for large holes in metal and rock workpieces
 * Trepanation (album), by American Head Charge
 * Trepanation, a technique used by bomb disposal units