Life Teen is an international Catholic movement that serves the Church by providing resources and faith experiences that help lead teens closer to Christ. This is accomplished through a vibrant Eucharistic spirituality and by creating opportunities for teens to grow in their faith.

Life Teen began in 1985 as a single-parish program in Mesa, Arizona. As it grew in popularity with the teens, people around the country began to take notice. The simple model of a Mass focused on teens and their families, followed by a catechetical session called a "Life Night," remains effective to this day. As more parishes inquired about the ministry, Life Teen began offering national training conferences on this new and comprehensive youth ministry model within a few years.

In the past two decades, Life Teen has grown into one of the most prolific Catholic youth ministry programs in the world.