Agincourt Collegiate Institute's school motto is:
AD OMNIA PARATUS "Prepared for All Things"
At Agincourt Collegiate Institute, an experienced and dedicated staff and a responsive student body contribute to the achievement of high standards in both curricular and extra-curricular programs. Students are encouraged to be caring, appreciative and accepting of each other's shared aspirations as well as cultural differences. Students have the opportunity to participate in leadership activities such as athletics, clubs, music ensembles, student leadership councils and student mentoring programs. Parents, staff and students work together to build a safe and caring environment and to foster pride in our ACI traditions.