Apply to Saint Mary's

We challenge our students to
question critically, think logically, communicate
clearly, act creatively, and live ethically.

Register for 2020-21

Incoming freshman and transfer students, please use the link below to complete the registration process for the 20–21 school year.

Sign up for Summer School

There’s something special about this place. Saint Mary’s Catholic High School is the first and oldest Catholic high school in Arizona. Since 1917, we have served a diverse population of students. The young men and women of Phoenix come to Saint Mary’s to receive an outstanding Catholic liberal arts education that fosters faith, promotes academic and athletic achievement, and encourages civic responsibility. Students come to be formed; they go on to shape the face of our nation as business leaders, civil servants, first responders, and public figures. Saint Mary’s — an extraordinary academic community enveloped by our unwavering Catholic faith.


Our students are smart, creative, and diverse.

We challenge our students to question critically, think logically, communicate clearly, act creatively, and live ethically. We support and celebrate their successes, and we work hard to provide inspiring faith and educational opportunities in the classroom and beyond.



Education does more than merely prepare students.

Saint Mary’s invites students into a relationship with the living God who is Truth, Goodness, and Beauty. We work to prepare the students for “what he must be and for what he must do here on earth, in order to gain the sublime end for which he was created.”


Experience the difference

We’re on a mission to help you know the Truth and love the Good.
Discover why Saint Mary’s Catholic High School is right for you.


You are why we teach, you matter.

Imagine what it would be like to surround yourself
with extraordinary thinkers who will strengthen and transform your life.
These are the kinds of leaders and teachers you’ll collaborate with every day at Saint Mary’s.


The word liberal in liberal arts and liberal education does not refer to the opposite of conservative; it refers to being free, the opposite of constrained and subjugated. The liberal arts curriculum at Saint Mary’s is designed to help students learn how to think and how to communicate. In other words, these habits help men and women become wise, not just smart.


When asked to recall memories of high school, many graduates will quote a plaque in the gym from the words of legendary trainer Horace Pieri, “We may not be the biggest, but we have the firm conviction we can be the best”. Saint Mary’s boasts 9 Boys Football Championships, 7 Girls Basketball Championships, 3 Boys Basketball Championships, and one Girls’ Softball Championship.


Saint Mary’s Catholic High School has been part of Phoenix history since 1917, just five years after Arizona became a state.  Founded by the Sisters of the Precious Blood, the school served five boys and twelve girls and was located in a dedicated classroom at Saint Anthony’s Elementary School.  In 1920, Saint Mary’s moved to its own one story home on East Monroe Street.

Ready to attend Saint Mary’s?