Thomas Jefferson High School for Science and Technology (also known as TJHSST, TJ, or Jefferson) is a Virginia state-chartered magnet high school in Fairfax County, Virginia operated by Fairfax County Public Schools.
In 2021 and 2022, U.S. News & World Report ranked the school first in its annual "Best U.S. High Schools" list.

International Seven-Day Boarding Students: $66,000. Books (dependent on courses) $350 - $500. Health Insurance for International Students $1,200 (10-month policy).