In 2016, his original choral work Prayer of St. Francis was sung during Mass at the Basilica of St. Francis of Assisi in Assisi, Italy. In 2024, his instrumental arrangement of Faith of Our Fathers was performed during Mass at the FOCUS/SEEK Conference in St. Louis, Missouri. Mark holds a BFA in Music Composition from Marshall University and an MFA in Composition from the University of North Carolina School of the Arts. He currently serves as Director of Music at Ave Maria Parish in Ave Maria, Florida, where he lives with his wife, Renae, and their seven children.

Mark Haas is a composer and speaker dedicated to promoting sacred music within the Catholic tradition. His liturgical music has been sung in more than 600 parishes across 10 countries, including musical settings for episcopal ordinations and church dedications. In 2017, his orchestration of Michael Accurso’s I Will Praise Your Name Forever was presented by the North Carolina Symphony Orchestra during the Dedication of Holy Name of Jesus Cathedral in Raleigh, North Carolina.

In 2025, Mark led the Ave Maria Parish Choir to Washington, DC, where they were invited to sing at the White House as part of the 2025 Open House Holiday Series presented by the First Lady.

Mark has contributed over forty articles on Catholic theology, liturgy, and culture, published by Aleteia, ChurchPOP, Crisis Magazine, CatholicExchange, and Corpus Christi Watershed. His writing has also been featured by CatholicVote.org and discussed on The Patrick Madrid Show on Relevant Radio.