Ellen Reilly

Ellen Reilly

Assistant Superintendent for Instructional Services

With a 25-year career in FCPS, Dr. Reilly has consistently demonstrated a commitment to academic excellence, inclusive education, and collaborative leadership. She began as an instructional assistant supporting students who are deaf or hard of hearing, reflecting her dedication to empowering every learner.

Dr. Reilly's leadership journey includes assistant principal roles at Oakton and Herndon high schools. As principal of McLean High School since 2012, she significantly expanded Advanced Placement and Dual Enrollment opportunities, including the successful implementation of AP Precalculus, which achieved a 98.6% pass rate.

Beyond her experience leading schools, Dr. Reilly has held multiple leadership roles across the division including serving as the lead principal for grading and reporting, acting as president of the FCPS High School Principals’ Association (HSPA), and chairing the Instructional Services/Instructional Technology Committee.

Dr. Reilly’s extensive experience will bring a valuable school-based perspective to the Instructional Services Department, ensuring that FCPS strategies are aligned with the practical needs of our schools.