Catholic lay movements are organizations within the Catholic Church that involve laypeople—those who are not ordained clergy—in various activities and initiatives. These movements aim to deepen the faith of their members, promote social justice, and engage in community service. They often focus on spiritual growth, education, and evangelization, encouraging members to live out their faith in everyday life. Examples of Catholic lay movements include Opus Dei, Focolare, and Legion of Mary. Each movement has its own unique mission and approach, but all share a commitment to fostering a vibrant Catholic community and encouraging active participation in the Church's mission.