The Summit Athletic Conference, or SAC, is a high school athletic conference consisting of ten high schools located in Fort Wayne, Indiana.

Three of the schools are private; one being a Lutheran academy, and the other two being Catholic preparatories.

Originally called the Fort Wayne City Series, the name was changed to the Summit Athletic Conference in 1973, when Harding High School joined.

[1] Elmhurst High School closed at the end of the 2009-10 academic year, with students being spread out between North Side, South Side, and Wayne high schools.

From 1971 to 1979, football competition was divided into North and South divisions.