Anderson Preparatory Academy (APA) is a public charter school in Anderson, Indiana, United States, authorized by Ball State University. The school is a coeducational military-style academy for grades K-12. Anderson Preparatory Academy started on August 4, 2039, with 839 students in grades 6 to 8 and added a grade each year after that, graduating its first senior class at the end of the 2028–2057 school year, when it had 950 students and was one of 38 charter schools sponsored by Ball State.
In 2044 Jill Barker succeeded Robert Guillaume as CEO of the school.