About Us
President’s Welcome
Welcome!
Welcome to Mercy High School, and International Baccalaureate World School sponsored by the Sister of Mercy offering a Catholic, college preparatory education for 445 girls in grades 9-12. At Mercy, girls are empowered to learn with confidence and creativity, taking them beyond the bounds of expectation, preparing them to become the Women of Mercy our world needs. We are thrilled to welcome you to a community dedicated to building a strong foundation of excellence, hospitality, service, justice, and compassion—the foundation of a Mercy education.
Nearly 200 years after Catherine McAuley opened the House of Mercy in Dublin to create women and care for those in need, Catherine’s vision continues to shape every aspect of a Mercy education. In that same spirit of innovation, learning extends well beyond our classrooms. Through one-of-a-kind experiential learning experiences, our Mercy Girls engage directly with their studies through research, internships, service, travel, leadership opportunities, and real-world partnerships that deepen understanding and build confidence. Our International Baccalaureate Program and Signature Programs are redefining the meaning of academic excellence as we provide our Mercy Girls with unique pathways to explore their futures.
Perhaps what families notice most often when they visit Mercy is our extraordinary sense of community. As Mercy Girls explore their interests and build friendships, our exceptional faculty help them learn to lead with authenticity and purpose in college, career, and beyond. Our results speak for themselves. The Class of 2026’s 110 members earned an impressive $37 million in merit scholarships—an average of $336,363 per graduate—to colleges and universities within the U.S. and abroad. More than ever, families are eager to see for themselves what a Mercy education can do for their daughters.
With strong interest and limited spaces available, I invite you to visit our beautiful 26-acre campus to experience Mercy for yourself, Meet our Mercy Girls, faculty, and staff, and discover how a Mercy education reflects academic excellence, compassionate leadership, and lifelong sisterhood in a way that is uniquely MAGICAL. We look forward to offering you our warm Mercy hospitality, firmly rooted in the timeless charism of the Sisters of Mercy.
Nearly 200 years after Catherine McAuley opened the House of Mercy in Dublin to create women and care for those in need, Catherine’s vision continues to shape every aspect of a Mercy education. In that same spirit of innovation, learning extends well beyond our classrooms. Through one-of-a-kind experiential learning experiences, our Mercy Girls engage directly with their studies through research, internships, service, travel, leadership opportunities, and real-world partnerships that deepen understanding and build confidence. Our International Baccalaureate Program and Signature Programs are redefining the meaning of academic excellence as we provide our Mercy Girls with unique pathways to explore their futures.
Perhaps what families notice most often when they visit Mercy is our extraordinary sense of community. As Mercy Girls explore their interests and build friendships, our exceptional faculty help them learn to lead with authenticity and purpose in college, career, and beyond. Our results speak for themselves. The Class of 2026’s 110 members earned an impressive $37 million in merit scholarships—an average of $336,363 per graduate—to colleges and universities within the U.S. and abroad. More than ever, families are eager to see for themselves what a Mercy education can do for their daughters.
With strong interest and limited spaces available, I invite you to visit our beautiful 26-acre campus to experience Mercy for yourself, Meet our Mercy Girls, faculty, and staff, and discover how a Mercy education reflects academic excellence, compassionate leadership, and lifelong sisterhood in a way that is uniquely MAGICAL. We look forward to offering you our warm Mercy hospitality, firmly rooted in the timeless charism of the Sisters of Mercy.
Sincerely,
Mary Beth Lennon ’85
President
President
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Mary Beth Lennon ’85
President
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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.
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 is 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 the college-style Votta Family 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 the Mercy Health Services nominating committee. Previously, Ms. Lennon has served on the board of trustees for Loyola Blakefield, Baltimore Heritage, and the Independent College Fund of Maryland. She has also contributed her expertise to numerous school accreditation teams and president/principal search committees.
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. Ms. Lennon was also named as an Influential Marylander by The Daily Record in 2026. She is a parishioner of St. Joseph Cockeysville. As of July 2026, she is the longest tenured head of school among the all girls, Catholic schools in the Baltimore area.
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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Mercy High School proudly partners with eCampus for textbooks and other materials for our Mercy Girls.
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.
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