Where Young Men Learn To Be Leaders.

Excellence in Catholic Education since 1926

Become a Leo man

Leo has adopted a rolling admissions policy. If you're interested in the placement test, call Mr. Michael Holmes, Leo Admission Director, at 773-224-9600 ext. 212.

Leo Men in the News

Leo Seniors at American Bar Association Meeting

Leo Seniors attended the American Bar Association Annual Meeting in Chicago in early August. While there, they were able to meet Andrea Zopp, (left) Urban League President and candidate for the U.S. Senate, and Congresswoman Maxine Waters. The Leo Men were able to participate in the debate on the Voting Acts Bill and the history Read more...

We are proud of our Leo graduates

The stately old church at St. Margaret of Scotland Parish was filled to near capacity with friends, family members and participants themselves as Leo High School celebrated its 86th Commencement on Sunday, May 31. What the 21 member class lacked in numbers, they made up for in exuberance as they shared their enjoyment of an Read more...

A Letter to our Graduates from the Alumni Association

Dear Graduates, We would like to congratulate  you on your recent graduation from what many of us regard as the finest educational institutions in existence. It is at this point that you transform from graduate to alumnus and the Leo High School Alumni Association proudly welcomes you. As a remembrance  of your time at Leo, Read more...

Leo Track Stars

Strong showings by the jumpers and in the weight events helped the Leo Lions defend their title in the IHSA Class A track and field sectional meet at Benedictine University in Lisle on Friday, May 22. Senior Latrell Giles was the Lions’ only individual winner, taking first place in the long jump with a leap Read more...

Leo Baseball Team Advances to 2nd Round

The Leo High School baseball team used a 12-hit attack to advance to the second round of the Leo-hosted IHSA Class-A Baseball Regional with a 13-9 victory over Seton at the Kroc Center on Monday, May 18. Leo will face Hales in the second round at 4 p.m. on Thursday, May 21. Morgan Park Academy Read more...

Upcoming Events

School Calendar

  1. Cross Country teams at ICOPS Invite

    Sep 5 9:00 am
    Kress Creek Farms
  2. Football team plays at Nazareth Academy

    Sep 5 5:00 pm
    Nazareth Academy
  3. Labor Day no school

    Sep 7
  4. Football teams play at Bishop Mac

    Sep 11 5:00 am
    Bishop Mac
  5. ACT Test

    Sep 12 8:00 am