The Missionary Childhood Association (MCA) is a world-wide organization made up of Catholic youth: from baptism to teen years.

Called by Baptism to share the gospel with others, we serve the Church world-wide through a distinct focus entirely on children. Dedicated to the idea of "children helping children," an awareness of the universality of the Church and the call to witness our faith is enhanced through global education, prayer and support from children to children across the continents.