The Rite of Christian Initiation of Adults is a rite of the Roman Catholic Church through which unbaptized adults or children are initiated into the Catholic Church. Non-Catholic Christians, who desire to become Catholic, are also welcomed into Full Communion of the Catholic Church through RCIA.

RCIA is an ongoing process. Those who desire to become Catholic may begin the process anytime during the year.

The process of becoming Catholic takes place in stages according to the individual needs of the participant.