Application and More

Interested in Rosati-Kain?

Fill out this form!

The choice of a high school is probably one of the most difficult decisions you have had to make in your life to date.  

You have done your research and feel confident that Rosati-Kain high school is the place for you. We are excited to share the R-K tradition of excellence with you and your family. Welcome to the Kougar family!  To access our application process, please click the Archdiocese link below or fill out our online form for those students not applying through the Archdiocese.


The Archdiocese of St. Louis High School Application is for students who are currently in 8th grade at a St. Louis Archdiocesan Catholic Grade School.  This online application opens on Monday, October 11, 2021. Students may click the following link to fill out the application at that time: Archdiocesan High School Application


For all other interested 8th grade, international, and transfer students, please fill out the form below or CLICK HERE.  This online form is open year-round.