The lawsuit also names several administrators along with the Joliet Diocese of the Augustinian Order, which runs the New Lenox school.
The family's attorney claimed the harassment was so bad, the teen tried to take his own life.
The lawsuit asks for more than a million dollars.
SEE ALSO FROM 2018 | Former Providence Catholic High School student sues over sex abuse allegations
ABC7 has reached out to the Diocese and the school for a response.
This is a breaking news story, check back for updates.