This website uses cookies to ensure you get the best experience on our website. By continuing to use this website, you consent to our use of these cookies.


St. John Baptist de La Salle, Pray for Us

Welcome home, Mustangs.

Mullen High School has built a family of over 8,000 alumni who share in the love, pride, and tradition of our beloved school. Whether you are a former student, a parent of a Mustang or a friend of our school, we welcome you back and encourage you to engage with your alumni family.

The Alumni Office is honored to offer events throughout the year that will spark nostalgia, connect old friends and refresh your pride for Mullen. We loved having you walk our campus then, and we would love to have you back, if only for a short while. Browse our “Upcoming Events” tab to connect with us.

We are always eager to hear what our alumni have built on the strong foundation of their Mullen career. We want to celebrate your joys, grieve your losses, and strengthen our bonds by staying connected. Click on “Share Your News" tab to keep us informed.

Mullen High School has taken different forms throughout the years. Whether you lived at the boarding school, were fond of Brother Bernard or Sister Brendan, graduated in an all-boy class or raced onto the field in your beanie freshman year, one thing has stayed constant: our love and affection for Mullen High School. We would love for you to reconnect.

I’ll close with full faith that you can complete these words:

Live Jesus in our hearts…

Click Here to send us your updated contact information, so we can contact you about future event and updates from campus. 

Alumni in the News

List of 5 news stories.

  • Fr. Francis blesses the ground that North Building will be built upon

    Campus Renovation Strengthens Mullen High School for Future Generations

    Denver (Feb. 24, 2023) – Mullen High School took a step toward the future today, marking the first phase of a multi-year project aimed at strengthening the 92-year-old Catholic High School.  

    Read More
  • Handley doubles as an ump

    By Neil H. Devlin, Mullen Sports Information Director
    2016 graduate Maverick Handley, in the baltimore Orioles system, actually called balls and strikes while catching in a Grapefruit League game; the former Male Student-Athlete of the Year and 6th-round draft pick goes viral; popular former Mustang still chasing his boyhood dream.
    Read More
  • Early signees for 'Stangs have considerable promise

    By Neil H. Devlin, Mullen Sports Information Director
    During the early signing period for football, Ish Aceves makes it official with New Mexico State and Hunter Lay confirms his appointment to the Ivy League's Penn Quakers.
    Read More
  • Easter Egg Hunt on Mullen's Campus

    By Demari Reynolds '12
    Saturday April 16th, 2022
    Event is from 9:00am-11:00am

    To register please sign up at this link: 
    Read More
  • Former Football Star Joins Mullen's Alumni Team

    By Demari Reynolds '12
    Hello my name is Demari Reynolds I am an alum of Mullen High School class of 2012. While being at Mullen I excelled in football was apart of the 3 state championships (2008-2011) and was awarded the Brian Dawkins Award and received a scholarship to continue playing in college. Upon graduation I attended Adams State University and studied Business administration and sports marketing. I had a successful career there playing football and got the opportunity to play professionally. After retiring I immediately started coaching football and training other sports and also taught special education for 6 years. I am very happy to accept the position of Alumni Relations Coordinator at Mullen and accepted the role because Mullen has always been a place that took care of me and the community itself is amazing. I loved my time there as a student and it is the foundation of what has helped make me a successful well rounded individual over the years. I'm thankful to be here and look forward to continuing the rich tradition we carry.
View All News

List of 1 items.

  • Demari Reynolds '12

    303.761.1764 ext 3364

Calling All Alumni!

Upcoming Alumni Events

List of 2 events.

View All Events