The American College of Sofia offers a diverse athletic program for students. The program fosters the development of athletic skills, while promoting important concepts of teamwork, communication, responsibility, and leadership. 

The athletic program is formatted to create seasonal schedules. Such a structure provides student-athletes with the opportunity to play on multiple athletic teams each year. In addition, seasonal training supports a more intense acquisition of skills over a period of a few months. This model allows students to focus on one sport at a time, while allowing for optimal use of the school facilities. Regular competitions are arranged with Sofia-area schools and international schools during the season.