The lawsuit said the archdiocese failed to take action against Juan Barajas despite repeated complaints that he had improper conduct with students at the all-girl San Gabriel Mission High School.
In 2016, he began a sexual relationship with the girl and took her to Las Vegas after his wife discovered the abuse. He was later arrested and sentenced to six years in prison for statutory sexual seduction.
The Archdiocese of Los Angeles has agreed to pay $8 million to a teenager who was sexually abused by the athletic director at her Catholic high school.
The Los Angeles Times reports Tuesday the award is the highest individual LA archdiocese settlement in a sex abuse case.