About Us

President’s Welcome

Welcome!

Welcome to Mercy High School, an International Baccalaureate World School offering a Catholic, college preparatory education for girls that is inspired and sponsored by the Sisters of Mercy. At Mercy, girls are empowered to lead, learn, and serve with confidence and heart. We are thrilled to welcome you into a community that embraces the values of excellence, hospitality, service, justice, and compassion—the foundation of a Mercy education.
 
At Mercy, we believe deeply in the transformative power of an all-girls education. The International Coalition of Girls Schools has documented the impressive research on the many advantages of girls schools!
 
Mercy’s leadership team of accomplished and caring woman leaders has created an environment designed to support our students’ success. Our Mercy Girls are encouraged to take risks, develop their voices, and pursue their passions without limitations. Our exceptional teacher mentors and accomplished alumnae role models inspire girls to achieve excellence in the classroom, pursue leadership roles across campus, and prepare for the world beyond high school. Indeed, research shows that graduates of girls' schools achieve higher academic success, develop stronger leadership skills, and enter college and careers with greater confidence.
 
Mercy’s rigorous academic program is made meaningful by a deep commitment to spirituality, service, and justice. Inspired by the legacy of Catherine McAuley, our students engage in meaningful service projects, advocate for social change, and develop a deep commitment to making the world a better place. Whether volunteering in the community, leading initiatives for equity, or standing up for those in need, Mercy Girls learn that leadership is rooted in compassion and action.
 
We also believe in the power of hospitality—creating a welcoming and inclusive space where every Mercy Girl feels known, cherished, and loved. At Mercy, friendships are formed—for life, ideas are shared, and students lift each other up. Whether excelling in science, performing on stage, competing in athletics, or leading student clubs, our Mercy Girls find their voices and their purpose.
 
Mercy’s unique traditions, sisterhood and community speak to us at a time when research shows how loneliness and isolation are hurting our adolescents. We believe that a Mercy education brings us together in a community of caring during a critical time in a young girl’s life.
I invite you to learn more about our exceptional Mercy community through our website and by visiting our campus. I hope you will experience firsthand the Magic of Mercy!
 
Sincerely, 
 
Mary Beth Lennon ’85 
President 
    • Mary Beth Lennon ’85

      President

Shaped by the vision and values of the Sisters of Mercy and their founder, Catherine McAuley, Mercy High School is part of a global network of 195 Mercy secondary schools. We share in a sacred mission to help our students live out our Mercy values—excellence, hospitality, service, justice, and compassion—so that our Mercy Girls become the people God calls all of us to be.
Ms. Lennon is the first Mercy alumna to serve as president of Mercy High School. Her own Mercy roots stretch back to Ireland, where her aunt ministers as a Sister of Mercy in Co. Galway. 

Appointed president in 2014, Ms. Lennon has worked with the Board of Trustees and the Leadership Team to expand Mercy’s academic offerings and renew its 26-acre campus. More than $14 million of facility and programmatic investments, funded through major gifts and grants, include modern classroom spaces, the Sister Marie Foley College Counseling Center, the Sisters of Mercy Athletic Complex, modern HVAC systems, and a college-style Dining Hall, reflecting our commitment to hospitality. There is more to come! 

As an Elizabeth Morrissy Scholar at Notre Dame of Maryland University, Ms. Lennon earned her B.A. in history in 1989. She received an M.A. in Latin American history from The Catholic University of America in 1991. She was one of 20 heads of school from around the world selected for a prestigious Klingenstein Fellowship at Columbia University’s Teachers College in 2020. Ms. Lennon is committed to civic engagement, and serves on the board of trustees for the Maryland Center for History and Culture and Loyola Blakefield, as well as the Mercy Health Services nominating committee.

The Daily Record named Ms. Lennon one of Maryland’s Top 100 Women in 2011, 2015, and 2018, and she is a member of their Circle of Excellence. In 2012, the Emerald Isle Club selected her as Deputy Marshal for the Baltimore St. Patrick Parade. In 2020, she received Notre Dame’s Elizabeth P. Hoisington ’40 Distinguished Alumna Award. She is a parishoner of St. Joseph Cockeysville.
Mercy High School Baltimore is a sponsored ministry of the Institute of the Sisters of Mercy of the Americas and is a member of Mercy Education.

Mercy High School proudly partners with eCampus for textbooks and other materials for our Mercy Girls.

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