The Country Day School movement is a movement in progressive education which originated in the US in the late 19th century.

Country Day schools seek to recreate the atmosphere, camaraderie, and character-building aspects of the best college prep boarding schools while allowing students to return to their families at the end of the day. To avoid the crime, pollution, and health problems of the industrial cities of the early 1900s, the schools were sited in the 'country' where wealthy families owned large homes in what would later be known as suburbs.

The Country Day School movement shared many values with the Arts and Crafts movement. School buildings and campus landscaping were designed with the goal of creating an inspirational atmosphere that would foster learning and culture. In keeping with this holistic view of the student learning environment, various "after-school" programs promotee student development, including athletic programs, choir and religious studies, and monitored study time. Students were given opportunities to develop leadership skills through clubs and student organizations.

The first Country Day School was the Gilman School in Baltimore, which opened in 1897.

Prominent Country Day Schools include:

• Beaver Country Day School
• Chestnut Hill Country Day School
• Cincinnati Country Day School
• Cranbrook Kingswood School
• Detroit Country Day School
• Gilman School
• Green Fields Country Day School
• The Savannah Country Day School