This category may inappropriately label persons. See Wikipedia:Categorization and WP:BLPCAT for advice on how to apply categorization to articles relating to people. See also the policy at Wikipedia:Categorizing articles about people regarding categorization by ethnicity, gender, religion, sexuality, or disability.

Persons who once were Sikhs but for whatever reason are no longer. Not necessarily from the perspective of conversion, whereas there is no concept of apostasy in Sikhism.