Where Young Men Learn To Be Leaders.

Excellence in Catholic Education since 1926

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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

The Leo Family has a lot to be thankful for

Dexter Dale embodies what we’re grateful for at Leo High School this Thanksgiving season. Dexter stopped by school the other day, on break from the University of Illinois, where he is a freshman. Four years ago, he was a pudgy little Leo freshman with a great smile and an even better attitude. He quickly realized Read more...


Nov. 28 As part of Leo’s 90th anniversary celebration, please join us for “A Day at the Races” at Hawthorne Race Course on Saturday, Nov. 28, the Saturday after Thanksgiving.  All Leo Men and their significant others are invited to a full day of live thoroughbred racing, off-track betting from other venues and big-screen viewing of Read more...


December 4 Building on the success of last year’s basketball game at St. Xavier University, the Leo Lions have scheduled another game for the venue this season. Leo will face longtime rival St. Rita at SXU’s Shannon Center, 103rd and Central Park, on Friday, Dec. 4. Doors open at 6 p.m., with tipoff at 7. Tickets Read more...

In Memoriam

Leo mourns the passing of five beloved members of the Leo Family who have passed on since the start of the school year. Each Leo Man is remembered in our daily prayers and monthly masses. THOMAS FITZGERALD ’59. During a legal career distinguished by groundbreaking death-penalty reforms, Judge Fitzgerald attained the highest rank in the Read more...

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