Custom

Custom, customary, or consuetudinary may refer to:

Traditions, laws, and religion

 * Convention (norm), a set of agreed, stipulated or generally accepted rules, norms, standards or criteria, often taking the form of a custom
 * Mores, what is widely observed in a particular culture, considered to be practiced by persons of good moral character
 * Social norm, a rule that is socially enforced
 * Tradition
 * Customary law or consuetudinary, laws and regulations established by common practice
 * Customary (liturgy) or consuetudinary, a Christian liturgical book describing the adaptation of rites and rules for a particular context
 * Custom (Catholic canon law), an unwritten law established by repeated practice
 * Customary international law, an aspect of international law involving the principle of custom
 * Minhag (pl. minhagim), Jewish customs
 * ʿUrf (Arabic: العرف), the customs of a given society or culture

Import and export

 * Customs, a tariff on imported or exported goods
 * Custom house

Modification

 * Modding
 * Bespoke, anything commissioned to a particular specification
 * Custom car
 * Kustom (cars)
 * Custom motorcycle

Brands, titles, and proper names

 * Custom (guitar), a model of guitar made by Fender
 * Custom (musician), stage name for New York–based musician Duane Lavold
 * Customs (TV series), an Irish television series that focuses on the daily lives of customs officers
 * Kimber Custom, a type of pistol
 * Customs (album), a 1989 album by Savage Republic