In Catholic teaching, the Sacrament of Penance is the method of the Church by which individual men and women confess sins committed after baptism and have them absolved by God through the administration of a Priest
Buddhism has been from its inception primarily a tradition of renunciation and monasticism. Within the monastic framework (called the Vinaya) of the sangha regular confession [zh] of wrongdoing to other monks is mandatory.
In Islam the confession of sins is made directly to Allah and not through man; the only exception is when confessing to a person is a required step in recompensing for the damage done. It is taught that sins are to be kept to oneself to seek individual forgiveness from Allah.
In Hinduism confession is part of Prāyaścitta, a dharma-related term and refers to voluntarily accepting one's errors and misdeeds, confession, repentance, means of penance and expiation to undo or reduce the karmic consequences.