Dr. Barrett Mosbacker serves as Head of School at Westminster Christian Academy in St. Louis, Missouri, where he leads one of the nation’s most respected independent Christian schools. With over thirty-five years of Christian school leadership, he has founded a school, led it from inception to nearly 700 students, and subsequently served schools enrolling nearly 3,000 students across multiple campuses. His experience spans church-based and independent Christian schools as well as both covenantal and evangelistic models.

Throughout his career, Dr. Mosbacker has built school cultures marked by academic rigor, biblical fidelity, and genuine community. Every school he has led has experienced enrollment growth and sustained student retention rates between 93 and 98 percent. He has guided schools through accreditation processes, leadership transitions, capital campaigns, and strategic planning initiatives while maintaining the relational trust essential to mission-centered leadership. A consistent innovator, he pioneered one of the nation’s first comprehensive 1:1 technology programs and has developed distinctive academic offerings that position schools for sustained relevance and growth.

Prior to his work in Christian education, Dr. Mosbacker served as a management consultant with the Legal Services Corporation in Washington, D.C., leading multidisciplinary teams in evaluating offices nationwide. He also served as president and regional advisor for the Christian Action Council, where he conducted research on education policy, provided expert testimony before the Ohio State Legislature, and published major research through the Family Research Council. Earlier in his career, he held progressive sales positions with M&M/Mars Corporation and General Foods Corporation.

Dr. Mosbacker received his doctorate in educational leadership from the University of North Carolina at Charlotte, his master’s degree in educational leadership from Covenant College, and his bachelor’s degree in business management from Cedarville University. He also completed forty graduate hours in systematic theology at Reformed Theological Seminary. For nearly two decades, he taught School Business Management in the graduate program at Covenant College and continues to consult with Christian schools throughout the United States and internationally.

He is publisher of The Christian School Journal and editor and contributing author of School Based Clinics and Other Critical Issues in Public Education. His work has appeared in The American School Board Journal, Christian School Educators Magazine, and other publications. He has served as keynote speaker and workshop presenter at conferences throughout the United States, Canada, Asia, and Australia.

Dr. Mosbacker’s passion is the development of world-class Christian schools that set the standard of educational excellence for the glory of God. He believes Christian schools should be characterized by vibrant, innovative, loving learning communities where faculty reflect the fruit of the Spirit and a love for students and learning as they disciple believing students and evangelize the lost.

An ordained ruling elder in the Presbyterian Church in America, Dr. Mosbacker has taught adult Sunday School for over two decades.