Crossroads College Preparatory School is a college preparatory school in St. Louis, Missouri, United States founded by St. Louis native Arthur Lieber in 1974.

In 2023, the school offers individualized tuition based on each family’s ability to pay.

[3][4] It began as an experiential school with an emphasis on personal relationships between students and teachers.

[4] The 1990s saw a change in the school's focus as the board of directors hired Billy Handmaker as head of school and tasked him with overhauling the curriculum and increasing academic requirements to focus on college preparation.

[5] In 2012, Crossroads was one of 78 schools in the country, and one of two in Missouri, to be named a "Green Ribbon School" by the Department of Education for their "comprehensive approach to creating 'green' environments through reducing environmental impact, promoting health, and ensuring a high-quality environmental and outdoor education to prepare students with the 21st century skills and sustainability concepts needed in the growing global economy.