Regnum Christi, Latin for Kingdom of Christ, is one Movement within the Catholic Church comprised of four vocations:
Legionaries of Christ - the priestly congregation Consecrated Women of Regnum Christi Lay Consecrated Men of Regnum Christi Lay Members of Regnum Christi
Regnum Christi has a Christ-Centered spirituality that is lived together in communion with all members in union with the whole Church, and through a mission to build the kingdom of Christ.
The whole Regnum Christi Movement is made up of 30,000 members throughout 38 countries world-wide.