Guising (disambiguation)

Guising, guizing, a guiser or guizer may refer to:
 * Guising, a Scottish and Irish tradition which is the origin of trick-or-treating
 * Guiser, an amateur actor in a mummers' play
 * Guizer, member of an Up Helly Aa squad
 * Guise dancing, Christmastide community mumming performed in Cornwall